Abington Abington High School Abington Hospital Abington School District J B Van Sciver
Alburtis Thomas Iron Company
Alcoa Center Alcoa Technical Center
Aldan Borough Container Division International Paper Company
Alden Alden Coal Co. International Paper Lansdowne Towers, Inc. Peoples Street Railway Co.
Alicia Pittsburgh Steel Co.
Aliquippa Aliquippa High School Aliquippa Junior High School Aliquippa Works Crucible Steel Harding Ave Junior High School J.B. Veatch- Truck Station 103 Jones & Laughlin Steel LTV Steel Queen City Cleaners Republic Steel Tin Mill
Allegheny A. & S. Wilson Co. Allegheny City Electric Light Co. Allegheny Heating Co. Allegheny High School American Locomotive Co. American S & W Co. American Steel Hoop Co. Baker Chain & Wagon Iron Manufacturing Co. Boggs & Buhl Carnegie Steel Co. D. Lutz & Son Brewing Co. D.L. Clark Co. Edith Furnace Eleventh Ward School George Hasley and Sons H.J. Heinz Co. Henry Phipps Mutual Training School Imperial Leather Co. Independent Brewing Co. La Belle Works Marshall Kennedy Co. Mckinney Manufacturing Co. National Lead & Oil Co. Oliver and Snyder Steel Co. P. McGraw and Wool Co. Pennsylvania Co. Pennsylvania Light & Power Co. Pittsburgh Coal Co. Pittsburgh Forge and Iron Co. Pittsburgh Milling Co. Pittsburgh Plate Glass Co. Pressed Steel Car Co. Schoen Pressed Steel Co. Wetern Penitentiary of Pennsylvania Westinghouse
Allenport Pittsburgh Steel Co. Vesta Coal Co. Wheeling Pittsburgh Steel
Allentown A.V.E. Airport A.T. & T. Technologies Abroqast Bastin Co. Air Products & Chemicals Allen Laundry Allen Products Co. Allentown and Kurtztown Traction Co. Allentown High School Allentown Hospital Allentown Portland Cement Co. Allentown Rapid Service Ice Co. Allentown Water Works Allentown-Bethlehem Gas Co. Amalgamated Silk Corporation American Steel & Wire Co. Arbogast & Bastlan Co. Bethlehem Steel Blossom Products Corporation Bonney Forge & Tool Works Central Catholic High School Consolidated Steel & Wire Co. Coplay Cement Manufacturing Co. Duggan & Marcon, Inc. Eastern Industrial Insulation First National Bank Fogelsville Plant Friskies Pet Care Co. General Electric Co. H.H. Chrowder Co. Haltenback and Stephens Hess Brothers Warehouse Horlacher Brewing Co. International Motor Co. Iowa Barb Wire Co. Lehigh County Court House Lehigh Parkway School Lehigh Portland Cement Co. Lehigh Valley Cooperative Farmers Lehigh Valley Dairy Lehigh Valley Traction Co. Lehigh Valley Transit Co. Lucent Technologies, Inc. Mack Manufacturing Corporation Mach Trucks, Inc. Mauch Chunk Lehighton and Slatington Railway Co. National Bond Insulators, Inc. Penn-Allen Portland Cement Co. Pennsylvania Ordnance Works Pennsylvania Power & Light PPL Electric Utilities Corp. Rothrock Dealership Sacred Heart Hospital Sears Roebuck Co. Spirax-Sarco Incorporated Syntex Corporation Thermal Engineering Inc. Trexler Farms United Gas Improvement W.F. Mosser and Son Wertz Engineering Co. Western Electric Co. William H. Taylor & Co.
Allenwood Pennsylvania Ordnance
Allison Park American Industrial Contractor
Altoona Allegheny Furnace Altoona & Logan Valley Electric Railway Altoona Area School District Altoona Car Shops Altoona Area School District Altoona Vocational Technology High School American Warming & Ventilating Co. Baker Elementary School Bon Secours Holy Family Hospital Buchanan Lumber Co. Conrail Curtin Elementary School D.S. Keith Junior High School Edison Electric Illuminating Co. Mercy Hospital Monongahela Melting Co. Penn Central Light and Power Co. Pennsylvania Railroad Co. SKF Plant Addition St. Mark's School State College US Veterans Administratiion Veterans Hospital Wright Elementary School
Alum Creek Township Keystone Generation Station Unit 1
Ambler Amchem Products Inc. Asbestos, Shing, Slate & Sheathing Co. Certainteed Boiler House Certainteed Corp. Keasbey & Mattison Co. Nicolet Industries Palmerweld Fabricating Co.
Ambridge A.M. Byers Co. Ambridge Plant American Bridge Co. Armco Steel Corp. Babcock & Wilcox Co. Bethlehem Steel H H Robertson Co J&L Steel Johnny's Gas Station Koppel Steel Co. LTV Steel N H Robertson Co. National Electric Products Co. National Supply Co. Steel City Lumber Co. United States Steel Corp. Wycoff Steel
Amsbry Webster Coal and Coke co.
Annandale Michigan Limestone and Chemical
Annville Ft. Indiantown Gap Military Reservation Lebanon Valley College Millard Quarry Township of Annville
Apollo Apollo Iron & Steel Co. B N Saul Hardware Builders Supply Nuclear Materials & Equipment
Archibald Achibald Colly Delaware and Hudson Co.
Ardmore Auto Car Co. Federal Savings Bank Lower Merion High School St. Mary's Laundry Valley Corp.
Arnot Blossburg Coal Mining & Railroad Co.
Ashland Ashland State Hospital L.A. Riley and Company
Ashley Central Railroad of New Jersey Gen Alden Coal Lehigh & Wilkes Barre Coal Co. Maxwell Colliery Stanton Colliery
Athens Ingersoll-Rand Co.
Audenreid Glen Alden Coal Co. Audenried #4 Coll Honey Brook Colliery #5 Lehigh & Wilkes Barre Coal Co.
Austin Bayless Pulp & Paper Co. Harvey and Collins
Avis Jersey Shore Steel Co.
Avoca Four Corners Powerhouse Heidelberg Colliery Pennsylvania Coal Co. Topps Bubble Gum
Avonmore Alcania Tin Plate Co. General Steel National roll Division Reynolds Manufacturing Co.
Baden LTV Steel Superior Builders Supply Co.
Bagdad Gas Pumping Station
Bakerstown S.W. Grease & Oil
Bala Cynwyd Bala Cynwyd Junior High School Connelly Containers, Inc. Decker SQ Stack Job Eastern Gunite Corp. Maddock & Co.
Bangor Bangor Electric Light, Heat & Power Co. Blue Ridge Winkler Textile Co. Julius Kayser Company Crown Plant Pennsylvania Lightweight Aggregate Sterling Silk Glove Co.
Barbados Island Philadelphia Electric Co.
Bardstown Owens Illinois
Bartville Bart Colerain Elementary School
Basement Marine Corps Supply
Bath Bath Portland Cement Co. Insuldeck Corp. Keystone Portland Cement Co. Lehigh Portland Cement Co Penn-Allen Portland Cement Co Pennsylvania Cement Co.
Beach Glen National Food Products
Beaver Babcock & Wilcox Co. Beaver County Geriatric Center Beaver County Home and Hospital Beaver Valley Traction Co. Curtis-Wright Corp. Eaton Corp. Koppers Company, Inc Western Electric Cororation Westinghouse Electric Corp. Western Penn
Beaver Falls 27th Street Plant American Axe and Tool Co. American Steel & Wire Co. Armstrong Cork Co. Babcock & Wilcox Co. Beaver Falls Medical Center Beaver Valley Traction Co. Beaver Wire Co. Consolidated Steel & Wire Co. Geneva College Grosglass- 27th Street Plant Hartman Steel Co. Ingram Richardson Co. Koppel Steel Co. Mack Axe Works Pittsburgh Railways Co. Pittsburg Seamless Tube Co. Providence Hospital Republic Aluminum Republic Steel Corporation Standard Scale and Supply Co. Stores Department Tate Jones Co. Tri Cash & Carry Lumber Co Tubalas Products Division Union Drawn Steel Co. Valley Ice Co.
Beaver Meadow Beaver Meadow Colliery
Bechtelsville Penn Jersey Transmission Corp.
Bedford Black Burn Russell Co. Fort Bedford Inn Standard Register Co. United Telephone Co.
Belle Vernon Fox Grocery J.C. Greenwood Association, Inc. Wetterau
Bellefonte Belefonte Works Bellefonte Electric Co. Bellefonte Gas Co. Commonwealth of Pennsylvania- State Corr Inst. Corning Glass Edison Electric Illuminating Co. Warner Company Abbots Dairies Inc.
Bendersville Adams Apple Products
Bennett Forty-Fort Colliery H.E. Colliery Simpson and Watkins Temple Iron Co.
Bensalem Bensalem High School
Berks County Berks Vocational School
Berlin Frantz Distillers, Inc. W.K. Niver Coal Co.
Bernville Hershey Chocolate Co.
Berwick American Car and Foundry Co. Berwick, city of Berwick Forge & Fabricating Owens Corning Fiberglass Vaugh Sanitary Bakery Wise Delicatessen Co. Wise Foods, Inc.
Berwyn Owens-Corning Fiberglass Corp. Philadelphia S&C 10 U.S. Steel Corporation
Bessemer Carnegie Steel Co. Edgar Thompson Steel Works U.S. Steel Corporation
Bethayres Bethayres Co. Drever Co.
Bethel Park Hallmor Co. Bethel Park Borough- Sewage Treatment Plant
Bethelport Allegheny Gasket
Bethlehem Air Reduction Plant Air Reduction Sales Co. Allied Chemical corporation Barrett Co. Bethlehem Fairfield Shipyard, Inc. Bethlehem Iron Works Bethlehem Plant Bethlehem Silk Co. Bethlehem Steel Bethlehem Steel Shipyard Central New Jersey Railroad Clearview Elementary School Coke Boiler House Coke Oven Division Didier Station Donegon School Freedom High School Lehigh Engineering Lehigh Pipe Shop Lehigh University Lehigh Valley Railroad Co. Moravian College National Portland Cement Co. Pangborn Corporation R.K. Laros Silk Co. Reichard Coulston S.S.African Planet (Ship) Saucon Plant St. Luke's Hospital Steelton and Highspire Rail Road Co. United Church of Christ Bethlehem Steel Research Center
Bettendorf Silver Steel Corp.
Beulah Eureka #7
Big Run Buffalo & Susquehanna Coal & Coke Co. Big Run Milling Co.
Bigler Ferro Corporation
Biglerville C.H. Musselman Co.
Billmayer J.E. Baker Co.
Birdsboro Aquitaine Chemical Co. Birdsboro Corporation Corbits, Inc. Diamond Drill Machine Co. E. & G. Brooke Iron Co.
Birmingham Birmingham School
Black Lick Corrigan-Mckenney Steel Co.
Blackwood Blackwood Colliery
Blair Station Crucible Steel Company of America
Blakely Blakely Borough Municpal Electric Plant
Blawnox Blaw-Knox Co. Allegheny County Workhouse Blawnox Mill Borough of Blawnox
Bloomsburg Bloomsburg Heating Co. Kaweener Co. Magee Carpet Co. Milco Undergarment Co.
Blue Bell Philco
Bornstein Middletown School
Boswell Merchants Coal Company of Pennsylvania Ozenda Smokeless Coal Co. Somerset Coal Co.
Boyertown Kawecki Chemical Co. Eastern Foundry Co. Penn Jersey Transmission Corp.
Braceton Brace Compressor Station Peoples Natural Gas Co. U.S. Bureau of Mines
Brakenridge Allegheny Ludlum Steel Corp. Brackenridge Works Soaking Pit Labor Products and Ice Co. USX Steel Mill
Braddock American Chain and Cable American Steel and Wire Co. Braddock and Turtle Creek Electric Railway Braddock General Hospital Citizens Electric Light Co. Edgar Thompson Works Jones & Laughlin Steel Line Company Pittsburgh Wire Co. Rochez Brothers & Supply Co. U.S. Steel Corporation- Edgar Thomson Works Union Railroad United States Steel Corporation
Bradford Bradford Oil Refining Bradford Supply Company Corning Glass Works Dresser Manufacturing Division Kendall Refining Co. Minard Run Oil Co. Petroleum Reclamation Co. Presbyterian Church Ryder & Richmond Oil CO. Speer Carbon Co. Tidewater Pipe Line Co. Union Dish Co. Universal Oil Products- Kendall Refining Co. Wilson Fitzgibbons Oil Co. Witco Chemical Corporation Zion Industries
Braeburn Braeburn Alloy Steel Co. Co. Braeburn
Brave Peoples Natural Gas
Breinigsville Lucent Technologies, Inc.
Briceton U.S. Bureau of Mines
Bridesburg Allied Chemical Corporation Rohm & Haas Chemical
Bridgeport Cumberland Light, Heat & Power Co. Dager and Cox, Eureka Paper Mills Daring Paper Co. Hugh McInnes Rebecca Paper Mill James Lees and Sons Co. Philadelphia Electric Union Paving Co. Valley Traction Co. Wager and Cox
Bridgeville American Cyanamid Co. Bridgeville Plant Copper Pittsburg Co. Downey Center Mayview State Hospital F B Wright Co. Flannery Bolt Co. General Electric Co. General Ionics Corporation Koppers Pittsburgh Co. Selden Co. Universal Cyclops
Bridgewater Bridgewater Paper Company Samuel Haight and Co.
Bristol 3M Bristol Water Works Childers Products Days Inn Kaiser Metal Merchant Shipbuilding Corporation Minnesota Mining & Manufacturing Co. National Container Co. Paterson Parchment Paper Co. Philadelphia Piping & Equipment Co. Purex Corporation Railway Specialties Rohm & Hass Chemical Seaboard Container Corporation Superior Zinc Corp. William H. Grundy and Company
Broad Ford A.C. Overholt & Company National Distillers Products Corporation
Brockport Hellen Mills
Brockway Brockway Glass Co.
Brookeville Owens-Illinois
Brothers Valley Township Brothers Valley Coal Co.
Brownfield H.C. Frick Coke Co.
Brownstown Brownstown Vo-Tech Building
Brownsville Monongahela Railway Park and Tilford Distillery Co.
Bruceton D.O.E U.S. Bureau of Mines
Brunners Island Pennsylvania Power & Light Duquesne Light Company
Bryn Athyn Academy of the New Church
Bryn Mawr Bryn Mawr College Bryn Mawr Hospital Harcum Junior College Mermount Gardens Philadelphia Suburban Water Co.
Buck Hill Falls Buck Hill Falls Inn
Bucks County Charles H. Boehm High School Council Rock High School Eureka Stone Quarry, Inc. George School Penns Park Philadelphia Piping & Equipment Co. Wrightstown Elementary School
Burgettstown American Zinc & Chemical Co. Greensburg-Connellsville Coal & Coke Co. Pittsburgh Buffalo Co. Union Electric Z&L Lumber Co.
Burnham Baldwin Locomotive Works Hydro-Blast corporation Logan Iron and Steel Co. Standard Steel Works
Burwick Wise Potato Chip Co.
Bute Station H.C. Frick Coke Co.
Butler Air Reduction Sales Co. Airco American Austin Car Co. American Bantam Car Co American Rolling Mill Co. Armco Steel Corporation Blaw-Knox Butler Health System Butler High School Butler Ligh, Heat and Motor Co. Butler Memorial Hospital Butler Township Butler Works Forged Steel Wheel Co. H. Julius Klingler and Co. John F. Casey, Inc., Pullman Standard John Tack & Sons Kaiser Job Keystone Pipe and Supply New Steel Buidlings, Spang Steel Co. Power House Pullman Standard Car Manufacturing Co. Rotoblast Spang & Co. Standard Steel Car Co. Steel Car Forge Co. Wayne Crouse, Inc. West Pennsylvania Traction Co.
Buttonwood Glen Alden Coal Co.
Cairnbrook Muskin Coal Mining Co.
California Crescent Mine Monongahela River Consolidated Coal and Coke Co. Vesta Coal Co.
Callery Callery Chemical Co. M.S.A. Research Center Mine Safety Appliance Co.
Calumet H.C. Frick Coke Co.
Cambridge Springs Pennsylvania State Corrections Institution- Dining Hall
Camp Hill Good Shepherd Roman Catholic Parish State Correctional Institution
Canonsburg Alcoa (F/K/A Reynolds Metal) Canonsburg Iron and Steel Co. Forbes Steel Co. Matthew S. Lewis Co. McGraw-Edison Power Systems PGH Transformer Philadelphia Co. Standard Tin Plate Co. Vitro **Re Metals
Carbondale American Welding Co. Carbondale High School Carbondale Machine Co. Coal Brooke Mine Consolidated Cigar Corp. Delaware and Hudson Co. Gentex Corporation Hendrick Manufacturing Co. Hudson Coal Co. Lackawanna Valley Electric Light and Power Co. Magazine Lumber Co. Northwest Collierty Our Lady of Mt. Carmel Convent Simpson and Watkins
Carlisle Carlisle Gas and Water Co. Dickinson School of Law Frog Switch Manufacturing Co. Lindner Shoe Co. PPG Industries SGL Abrasives US Army War College- Carlisle Barracks
Carnegie Aetna Chemical Co. Amjohn Incorporated Anchor Supply Co. Carlson Manufacturing Co. Carnegie Tube Co. Chem-Clay Corporation Columbia Bridge Co. Damascus Nickel Steel Co. Guardian Encr & Dev Co. Masonry Inc. Mcclintic-Marshall Construction Co. O. Hommel Co. Salem Brosius Inc. Superior Steel Corporation Taylor forge & Pipe Works Union Electric Steel Co. W W Armstrongn Inc.
Carrie Furnace US Steel
Castle Shannon St. Ann Src Church
Catasauqua Bryden Horseshoe Co. Catasauqua Manufacturing Co. Crane Iron Works Empire Iron and Steel Co. Lehigh Car Wheel and Axle Co. Lehighs Northamptom Gas Electric Co. O'Brien Rubber Thread and Webbing Co. Royal Swan Inc (a/k/a General Ribbon Mills, Inc)
Cederbrook Hills Cederbrook Hills Apartments
Cementon Whitehall Portland Cement Co.
Center Valley National Drug Co. New Jersey Zinc Co.
Centralia Centralia Colliery L.A. Riley and Company Lehigh Valley Coal Co. Midvalley Coal Co.
Chaffee Enterprise Transit Co.
Chalfont Eureka Stone Quarry, Inc.
Chambersburg American Can Co. Baird Insulation Co. Cedar Cliff Silk Co. Chambersburg Hospital Chambersburg Market Chambersburg Powerhouse Corning Glass Cumberland Valley Division of Pennsylvania Railroad Co. H.J. Heinz Co. Letterkenny Ordnance Depot- Field Service Acct Swift and Company WMCA Radio Station
Charleroi Charleroi Brewing Co. Corning Glass Works Pittsburgh Plate Glass Co. Tri Cities Water Co.
Cheat Haven West Virginia Power Transmission Co.
Cheltenham Township Cheltenham High School
Cherry Tree Barry's Home Improvements
Chester A.H. Wirz, Inc. Alert American Astronaut American Dredge American Dyewood Co. American Locomotive Co. Atlantic Refining Co. B.P. Oil Company Baldt Anchor Co. Baldwin Lima Hamilton Beacon Light Co. Buono Bakery Chester High School Chester Lace Co. Chester Paper Co. Chester Processing Co. Comet Crozier Medical Center Delaware County Electric Co. Delaware River Steel Co. Delta Ecuador Dredge Philadelphia Employment Security Office Fayette Manufacturing Co. Federal Steel Foundry Co. Harbison Walker Refractories Co. Hopeman Brothers J.H. Wilcox M.T. Seakite Medford's Inc. National Tube Co. Navasota Newark Processing Co. Pacor Pawcatuck Pennsylvania Industrial Chemical Co. Pennsylvania Railroad Pennsylvania Steel Mill Pennsylvania Electric Co. Philadelphia Quartz Co. Phoenix Iron and Steel Co. Pico Chemical Pittsburgh Ferromanganese Co. Reynolds Metals Co. Ruth Bennett Project S.S. Atlantic Eng. S.S. Atlantic Navigator S.S. East Hills S.S. Esso Jamestown S.S. Illapel S.S. Mercantile Wave S.S. Mobil Aero S.S. Olympic S.S. Olympic Rock S.S. Richfield S.S. Sister Katingo Santa Elena Saugatuck Scott Paper Co. South Chester Tube Co. Springwell Foundry Sun Oil Sun Shipbuilding & Drydock Co. Sun Transport Co. Thermal Refractories Co. Tidewater Steel Co. Tonsina U.S.S. Alderbaran U.S.S. Hank U.S.S. Hank DD-702 U.S.S. Vermilion Ukranian Cathedral Widener University Widgeon Wirtz A H Inc.
Chestnut Hill Chestnut Hill Academy Nelson Valve Co. School
Cheswick Coalfax Power Station Duquesne Light Company Gulf Research & Development West Pennsylvania Power Co., Cheswick Station Westinghouse Electric Co.
Cheyney Cheyney State University
Chickies Chickies Iron Co. Henry Clay Furnace
Chicora Harry Elenberger Lbr Co.
Christy Park United States Seamless Tube Co.
Clairton Alleghany Ludlum Steel American Bridge Badger Corp Benzoil Plant 8 Clairton By-Products Coke Works Clairton High School Clairton Steel Co. Clairton Steel Works and Furnaces Crucible Steel Company of America Keystone Project, Clairton Works Pennsylvania Industrial Chemical Co- Clairton Plant Pico Chemical Power Piping Co. USX Steel Mill
Claremont Allegheny County Workhouse
Clarion Brockway Glass Commonwealth of Pennsylvania- Dept. of Public Instruction Owens Illinois Glass Co. State Teachers College
Clarks Summit Clarks Summit State Hospital
Claxton Owens Illinois
Clearfield Army Reserve Center Clay Mill Works Clearfield High School Clearfield Hospital Clearfield Steam Heating Co. Shawville Power Station Soult Wholesale Co. Stratton Motor Co.
Clifton Heights Delaware County and Philadelphia Electric Railway Co. Thomas Kent Manufacturing Co.
Clover Creek Raystown Water Power Co.
Coal Glen Jefferson Coal Co.
Coaldale Bundy Tubing
Coatesville Bethlehem Steel Corporation Coatesville Rolling Mill Co. Day & Zimmerman Linde Air Products Co. Lukens Iron and Steel Co. North Brothers Co. Physical Test Labs Steam Generator Sales Service United States Veterans Hospital Worth Brothers Co.
Cochran Station Carnegie Steel Co. Duquesne Steel Co.
Cochranville C&C Auto Parks
Cokeburg Ellsworth Coal Co.
Colbers Mine H.C. Frick Coke Co.
Collegeville Rhone Poulenc Rorer Inc. Trappe and Limerick Electric Street Railway Co. Ursinus College- Dining Room
Colmar I.T.E. Circuit Breaker Co. Link Belt Co.
Columbia Colonial Aluminum & Smelting Co. Columbia Water Co. E.T. Edwards Grinnell Company, Inc.
Colver Ebensburg Coal Co.
Concordville Franklin Smelting Co.
Conemaugh Indiana County Conemaugh Steam Electric Station
Connellsville Anchor Glass Container Corporation Anchor Hocking Glass Corporation Baltimore and Ohio Railroad Co. Bell Telephone Co. Boston & Ohio Railroad Co. Southwest Water Co. W.J. Rainey Company West Pennsylvania Power Co. West Pennsylvania Traction Co.
Conshohocken Acousticraft, Incorporated Alan Wood Iron & Steel Co. Boehm Manufacturing Co. Budd Company C&D Battery Conshohocken Worsted Mills Co. Finnaren & Haley Paint Ford and Kendig Co. Goodyear Tire & Rubber Co. Ivy Rock Farm Jawood Lukens John Wood Manufacturing Co. Keystone Woolen Mills Lee Rubber & Tire Co. Longmead Iron Co. Quaker Chemical Corp. Rich-Sampliner Knitting Mills Co. Smith Kline & French William Armstrong & Sons
Conway Consolidated Railway Corporation L & N Railroad Pacific Railroad Western Lines Pennsylvania Company
Conyngham Hazle Mountain Coal Co.
Cooks Ferry Westinghouse, Church, Kerr and Co.
Coplay Central Cement Co. Coplay Cement Manufacturing Co. Reliance Cement Co. Valley Mill
Coral Homer City- Sam Place Homer City Station Pennsylvania Electric Co.
Coraopolis Allegheny Plastics Co. Blaw-Knox Co. Homestead Industries Pittsburgh Forgings Co. Pittsburgh Knife and Forge Co. Coraopolis Ice Plants
Corliss Brunot Island Generating Station
Cornwall Bethlehem Cornwall Bethlehem Steel Corporation Bird Coleman Furnaces Cornwall Iron Co. Cornwall Ore Bank Co. New Pellet Plant North Cornwall Furnace Co.
Cornwell Heights Badenhauser E.I. Du Pont De Nemours & Co. Riley Stoker Publicker Commercial Alcohol Co. R. Shafer Supt. Schuylkill Forge Co. Schutte and Koerting Co. St. Elizabeth Convent
Corry Aero Supply Manufacturing Ajax Ironworks Cooper Industries Penn Shovel Co.
Coudersport Coudersport Junior & Senior High School Elk Tanning Company
Council Bluffs Omaha and Council Bluffs Railway and Bridge Co.
Courtney Alleghany Power Co. Allegheny Energy Allegheny Energy Supply Co. General Electric Co. Mitchell Power Station West Pennsylvania Power Co.
Coxton American Gas and Electric Co. Lehigh Valley Railroad Simpson and Watkins
Crab Tree Jamison Coal and Coke Co.
Crafton Armour Co. Crafton Ice Co.
Craigsville Phillips Gas Co.
Creighton Alon Engineering, Inc. Pittsburgh Plate Glass Co.
Crescent Township Duquesne Light Phillips Power Station
Crescentdale Crescent Portland Cement Co.
Cresson Cresson State College
Cressona Alcoa Aluminum Company of America Cressona Aluminum
Cromby Cromby Generating Station Philadelphia Electric Co, Cromby Plant
Croyden Railway Spec. Corporation Delaware Valley Drywall PECO Croydon Powerhouse
Crum Creek Philadelphia Suburban Water Co.
Crumberland County Mount Holly Springs Valley Traction Co, Lemoyne
Cupola Hadden Steel Co.
Curwensville Elk Tanning Co.
Dallas Commonwealth of Pennsylvania- Dept. of Justice Ins. Store Room Knitting Factory Sisters of mercy Bldg B- Miseracordia College
Dalton St. Pius X Sminary
Danielsville Blue Ridge Traction Co.
Danville Cherokee Plant Danville and Sunbury Street Railway Co. Danville State Hospital Danville Stove and Manufacturing Co. Danville Structural Tubing Co. Danville Water Works Howe and Polk Howe and Samuel Hydro-Blast Corporation Mahoning Rolling Mill Co. Merck Chemical Montour Steel and Iron Co. North Branch Steel Co. Pennsylvania Brake Beam Co. Reading Iron Co. Reed Danville State Washington Powerhouse
Darby Darby Paper Co. Griswold Worsted Company
Darmont US Gypsum Co.
Dauphin County Amp, Inc.- Main Office Building
De Vault Warner Co.
Dearth Mines H.C. Frick Coke Co.
Deemston Boro Bethlehem Jr. Sr. High School
Delano Mill Creek Coal Co.
Delaware City Broad Meadows Farm Delaware County Prison Delaware County Hospital Holland Furnace Marple Township Philadelphia Electric Co. Rock Tenn Co. Vocational Technical School
Delmont Delmont Builder Supply Gibson Electric Co. New York State Natural Gas Co.
Delta Peachbottom Nuclear Power Plant Philadelphia Electric
Dremmler American Sheet and Tin Plate Co. Firth-Sterling Steel Co. United States Iron and Tin Plate Manufacturing Co.
Denbeau Pittsburg PA Plant Reliance Coke Co.
Derby Westinghouse Elec Corp.
Deringer Coxe Brothers and Co. Cross Creek Coal Co.
Derry Cash and Carry Lumber Co. Westinghouse Electric Corp Westinghouse High Voltage Insulator Co. Westmoreland Water Co.
Dickson City Bliss Silk Throwing Co.- Jessup Plant Scranton Anthracite Briquette Co.
Dixmont Dixmont Hospital for the Insane Western Pennsylvania Hospital for Insane
Donaghmore Lackawanna Iron and Steel Co.
Donora American Steel and Wire Co. Donora Brewing Co. Donora Zinc Works Power Piping Union Steel Company United States Steel
Dormont South Hills Ice Co.
Dorranceton Silk Mill
Doryea Toffs Inc
Downingtown Bicking Paper Mills Daring Paper Co. Depaco Paper Co. Pepperidge Farms Sonoco Products Co (a/k/a Downingtown Paper)
Doylestown Chew-Bittel Company Doylestown and Easton Street Railway Co. Neshaminy Nursing Philadelphia Rapid Transit Co.
Dravesburg United States Steel Corporation Carnegie Illinois Steel Corporation
Dresher Robert Wooler Co.
Drexel Hill Arnomink Steam Heat Co. Beyer William and Kathleen Delaware Company Memorial Hospital Upper Darby High School
Drifton Beaver Meadow Collierty Coxe Brothers and Company Cross Creek Coal Comany
Dubois Adrian Furnace American Motors Baltimore & Ohio Railroad Co Berwind White Coal Mining Co. Buffalo & Susquehanna Coal & Coke Co. Burke, Parsons & Bowlby Dubois Electric and Traction Co. Dubois Hospital Fitzpatrick Sheetmetal Osborn Machine Co. Rochester and Pittsburgh Coal and Iron Co.
Dunaghmore Bethlehem Steel Corporation Lackawanna Iron and Steel Co.
Dunbar Dunbar Furnace Company Semet-Solvay Company
Duncott Leisenring and Company
Dundale Keystone Coal and Coke Co.
Dunlo Berwind White Coal Mining Co.
Dunmon Old Forge Breaker Pennsylvania Coal Co.
Dunmore Dolph Coal Co. Pennsylvania Coal Co. Double Woven Corporation of America Dunmore Iron and Steel Co. Erie Railroad Co. Eureka Div of Litton Ind Gipsey Grove Colliery Lehigh Engineering Co. Pennsylvania Coal Company RCA Plant Schooley Colliery
Duquesne Carnegie Steel Co. Duquesne Incinerator Duquesne Steel Works Grant towers Linde Air Products Co. U.S. Steel Corp. Union Carbide & Carbon Chemical Corp.
Duryea Austin Construction Simpson and Watkins
Earlston Joseph and Thropp
East Allentown Homeopathic Hospital for the Insane
East Altoona Pensylvania Railroad Co.
East Bridgeport Abrams Storage Yard
East Carnegie McClintic-Marshall Construction Co.
East Conshohocken Jawood Lukens
East Greenville Pillsbury Plant
East Liberty Danlevy Packing Co. Dunlevy and Brother Co. East End Electric Light Co. National Biscuit Co.
East Stroudsburg International Boiler Works General Hospital Strand Township The Patterson-Kelley Co, Inc. Union Metal Manufacturing
East York American Chain Company Caterpillar Tractor Co.
Easton Alpha Portland Cement Co. American Can Co. Ashland Emery & Corundum Co. Bethlehem Steel Corporation Binney & Smith, Inc. Chipman Knitting Co. City Hall & Courthouse Dixie Cup Plant Dock street Plant Eastern Affiliated Services Corp. Eastern Pennsylvania Power Co. Easton Gas and Electric Co. Easton High School Easton Shopping Center Elementis Pigments, Inc. Harrisburg Foundry & Machine Co. Ingersoll Rand Co. Ingersoll Sergeant Drill Company Layfayette College Lehigh Water Co. Long's P & H Service Metropolitan Edison Co. Northampton Traction Co. Pennsylvania Utilities Co. Peoples Consolidated Service Corp. Pfizer Incorporated R. and H. Simon Taylor-Wharton Iron and Steel Co. Temple Covenant of Peace Victor Balata Plant William Wharton Jr. Co.
Ebensburg Bethlehem Mines Corporation Bethlehem Steel Company Ebensburg Light, Heat & Power Co. Kennedy Ebensburg Center Power Systems Operations
Economy American Bridge Company Beaver Valley Traction Company Standard Seamless Tube Company
Eddington Ampco Metals Incorporated Paul Bronze & Brass Corp.
Eddystone Baldwin Locomotive Works Baldwin-Lima-Hamilton Corporation Boeing Vertol Eddystone Manufacturing Co. Eddystone Powerhouse Exelon Power General Steel Casting Corp. Heppenstall-Eddystone Corp. Midvale Heppenstall Co. North Side of Industrial Highway Peco Eddystone Station Powerhouse Philadelphia Electric Co. Scott Foam Scott Paper Co.
Edensburg Bethlehem Mines Corporation Bethlehem Steel Company
Edge Moor Delaware Power & Light Co.
Edgely Megargee Paper Co. Paterson Parchment Paper Co.
Edinburg New Castle and Lowell Railway Co.
Edison G.E. Metropolitan Edison-Titus Station Turbine Philadelphia Electric Co.
Edwin Koppers Company, Inc. - Chemical Divison
Egypt Giant Portland Cement Co. Trexler Farms
Ehrenfeld Pennsylvania Coal and Coke Co. Webster Coal and Coke Co.
Eiles Barre U.S. Engineers Susquehanna River Flood Control
Elderton Keystone Generation Station Keystone Project, Westinghouse Electric Westinghouse Electric Corporation
Eleanor Shaft Mine Rochester and Pittsburgh Coal and Iron Co.
Elizabeth Chiz Brothers, Inc. Jones and Laughlin Steel Corporation Klien Chocolate Company M. and M. Mars, Inc. Masonic Homes- New Recreation Building
Elk Station Cleveland Erie Co. Conneaut and Erie Traction Co.
Elkins Park Lynnewood Gardens
Elkland Elkland Leather Co. Proctor Ellison Co.
Ellsworth Bethlehem Steel Corp Ellsworth Collieries Co. Keystone Coal and Coke Co. Pittsburgh Buffalo Co.
Ellwood City Aetna Standard Babcock & Wilcox Co. Blaw-Knox Co. Ellwood City Forge Corp. J. and C. Nicholson Trustee Lincoln High School Municipal Electric Dept., Ellwood City Borough Pennsylvania Power Co. Peoples Power Co National Tube Shelby Steel Tube Co. Standard Plant Steel Car Forge Co United States Steel
Elrama Duquesne Light Co. El Rama Power Station Equitable Gas Co Limbach S Pgh Waterhouse Co. Matthiessen and Hegeler Zinc Co. Orion Power Midwest, LLC. Westinghouse Electric Co.
Elwyn Elwyn Training School
Emlenton Emlenton Refining Co. Honeywell, Inc. Petrowax Quaker State Oil & Refinery
Emmaus Air Products, Inc. Donaldson Iron Co. Electro Chemicals Reading Iron Co.
Emporium Aetna Explosive Co. C.R. Bairch and Company Motor Coils Manufacturing Co.
Enola Air Reduction Sales Co. Consolidated Railway Corporation HBG Penn Central Pennsylvania Railroad Co. RL Miller
Ephrata Glen Gery Shale Brick Corp. Owens Corning Fiberglas
Erie A Hill Co. Aluminum Company of America, Aluminum Plant Ball Engine Co. Barron College Black and Germer Case Erie Supply Corp. Commercial Asbestos Paper Consumers Power- J R Whitting Power Plant Continental Rubber Works Detroit Steel Products Co. E S Atkinson Elk Creek Station Erie Car Works, Limited Erie City Iron Works Erie Coke Co. Erie County Courthouse Erie County Electric Co. Erie Electric Motor Co. Erie Forge and Steel Co. Erie Lighting Co. Erie Malebus Iron Erie Marine Erie Works F.H. Kalbfleisch Corporation Ferro Corp G.A.F. Corporation Industrial Prod. Division General Electric Co. GES; Circulating Fluid Bed Plant Gnex Inc Gram Asbestos Co. Gree Inc. H.F. Watson Co. Hammermill Paper Co. Hamot Hospital Hamont Medical Center Heyl Physicians Supply Co. Hubbs & Howe Co. Hydro-Blast Corporation Insulation Sales Co. Interlake Iron Co. International Paper Co. James S. Wilson Junior High School K & L Refractory Service Laco-McMullen Co., Inc. Linde Co. Lovell Manufacturing Co. McEnery Co. Mill Creek School Millcreek Mall Norfolk & Western Railway Nosco Oldman Boiler Works Onex Inc. Parade Lumber Co. Penn Aluminum Pennsylvania Electric Co. Pennsylvania Gas Company Pennsylvania Railroad Pennsylvania Rubber Co. Perry Iron Co. Prescotech Presque Isle Boiler Presque Isle Paper Co. Quin-T Corp. R & J Supply Co. Republic Heater Co. Rubel Sans Corp. Skinner Engine Co. Till Distributing Trost Sheet Metal Co. Union Iron Works United Atkinson Inc United Industrial Supply Co. Wellman-Seaver Morgan Co. Whiting Corporation Zurn Industries
Ernest Jefferson & Clearfield Coal & Iron Co.
Erwinburg Venus Pen & Pencil
Essington Baldwin Automotive Scott Paper Co., Research & Development Center Westinghouse Electric & Manufacturing Co.
Etna Carnegie Illinois Steel Corp. Isabella Furnace Co. Keystone Asbestos Magnesia Co. McConnell Asbestos and Covering Co. National Supply Co. Spaug Chalfaut and Co.
Eureka Berwind White Coal Mining Co. Eureka Stone Quarry, Inc.
Evans City Motor Coils Manufacturing Co. MSA Pittsburgh Harmony Butler and New Castle Railway Co.
Evansville Allentown Portland Cement Co.
Everson Allied Mills, Inc.
Excelsior Excelsior Coal Co.
Exeter Exeter High School
Export New York State Natural Gas Co. Univ. Welding
Exton A.I.W. Frank Corporation Cresmer Fence Co. Exton mall Foot Mineral Co.
Fairbank US Steel
Fairless Hills American Can Co. F.A. Pavlick Fairless Steel Fairless Works US Steel Koppers Linde Co. M.H. Detrick National Can Stick Trailers U.S. Steel Corporation
Fairview Fairview School
Fallen Timber Ridge Equipment Co.
Falls Creek Rochester and Pittsburgh Coal and Iron Co.
Fallston Beaver County Light Co. C.C. and E.P. Townsend Co. Valley Electric Co.
Farmers Valley Mc Kean Plant Petrowax Quaker State Oil Refining Corporation
Farrell American Sheet and Tin Plate Co, Farreee Works Carnegie Steel Co. Farrell Steel Works & Furnaces Linde Co. Sharon Steel Corporation
Fayette Bollinger Andrews Construction Co. Perry Lower Tyrone School
Feasterville Blatts Chemical Laboratory
Flatlands Roman Catholic Protectory Montgomery County
Fleetwood Fisher Body Corporation Fleetwood Metal Body Co.
Floreffe Ashland Oil & Refining Co.
Fogelsville Kraft Foods Lehigh Portland Cement Co. Pabst Brewing Co. Schaeffer Brewery Standard Plastics
Folcroft Heatherington Plant
Folsom Dutton Place Apts Philadelphia Morton and Swarthmore Street Railway
Forbes Road Jamison Coal and Coke Co. Surface Chemicals Inc.- Metals Division
Ford City Eljer Co Fawcus Machine Co. Ford City Foundry & Machine Co. Lenape Elementary School Pittsburgh Plate Glass Co.
Forest City Scranton Gas and Water Co.
Forest Park Sherwood School
Forrest Hills Westinghouse Electric Co- Atomic Power Div. Fort Washington Chemical Concentrates Honeywell W M H Roper Co.
Forty Fort Temple Iron Co.
Frackville Brookwood Coal Co. Brookwood Colliery G.A. Haupt, Jr. Philadelphia and Reading Railway Co.
Frankford Allied Chemical & Dye Corporation Barrett Manufacturing Co. Yerks and Plumb
Franklin Bethlehem Steel Corporation Chicago Pneumatic Tool Co. Franklin Quality Refining Co. Franklin Steel Works Hydro-Blast Corporation Joy Manufacturing
Frazer Bishop Tube Co. Transcontinental Pipe Line Corp.
Freedom Ashland Oil & Refinery Co. Freedom Oil Works Co. Freedom-Valvoline Oil Co.
Freemans Run Buffalo Hardware Stove Co.
Freemansburg New Jersey Zinc Co.
Freeport A. Guckenheimer & Brothers Freeport Brick Co. Freeport Terminal Inc- Liquid Bulk Terminal Freeport Water Works Co.
Friedensville New Jersey Zinc Co.
Frugality Can-Tex Industries, Inc.
Frye Station Stauffer Chemical Co., Inc.
Fullerton GAF Corporation Jordan Park Apartments- Boiler House
Gallery M S A Research Corp
Gallitzin Degol Brothers
Gedda G.B.Markle & Co.
Germantown American Lace Manufacturing Co. Leicester Continental Mills Co. Strawbridge & Clother Department Store United Gas Improvement Co. William Armstrong & Sons Wilson H. Grown, Inc.
Gettysburg Geo. F. Moilers Co. Gettysburg College Gettysburg High School
Gibbstown E.I. Du Pont De Nemours & Co.
Gibraltor Crompton & Knowles Althouse Division
Gidsoni Pittsburgh Cot Flower Co.
Girard Point Gulf Oil Corp Gulf Refining Co. Jayval Marine Corp. Mahanoy City Water Co. Paragon Packaging Product Inc. S.S. Gulf Lube
Girardville Schuylkill Railway Co. W.R. Mcturk Coal Co.
Gladwyne Gladwyne College
Glassmere Alcoa (Reynolds Metals) Allegheny Plate Glass Co. Ford Motor Co.
Glassport Allegheny By-Product Coke Co. American Axe and Tool Co. Bucyrus- Erie Copperweld Pittron Pittsburgh and Lake Erie Railroad Pittsburgh Gas and Coke Co. Pittsburgh Steel Foundry
Glen Lyon Breaker Boiler House
Glen Rock Faust Distillery Susquehannock High School
Glen Summit Glen Summit Hotel and Land Co.
Glen Wilton Princess Furnace Co.
Glenfield American Industrial Contracting Glenolden Harcast Corporation
Glenshaw Glenshaw Glass Co Shaler High School, Shaler Township
Glenside Beaver College Harry A Prock Cabinet Co. W.W. Harrison
Glenwillard General Cable Co. Pipeline Service Co.
Glenwood Baltimore and Ohio Railroad Co. Greenville
Good Spring Philadelphia and Reading Coal and Iron Co.
Graff Station Ford City Foundry & Machine Co.
Grantville Penn Jersey Transmission Corp.
Graterford Commonwealth of Pennsylvania- State Penitentiary
Grays Ferry J.G. Brill Co.
Greencastle Greencastle Packing Co. Lanehart Co.
Greensburg Allegheny Energy Service Corp., Willow Island Allegheny Energy Supply Co. Atlantic Crushed Coke Co. East Hempfield Elementary School General Carbice Greensburg Central Catholic High School Hatfield's Ferry Power Station Jamison Coal and Coke Co. Kelly and Jones Co. Keystone Coal and Coke Co. Navy Propulsion Plant St. Joseph's Academy Tri River Building Products Inc. Wayne Construction Co. Westmoreland County Home for the Destitute Westinghouse Electric Airbrake
Greenville A.G. Vento Plumbing Co. Bessemer and Lake Erie Railroad Co. Chicago Bridge & Iron Co. Greenville Steel Car Co. Mercer County Light Co. Peoples Electric Light, Heat and Power Co. R D Werner Co. Schaaf Heating & Air Conditioning Shelby Steel Tube Co.
Grindstone Colonial Coke Co. Pittsburgh Coal Co.
Grove City Borough of Grove City- Sewage Treatment Plant Goodyear Grove City College
Grover Grover Farms, Inc.
Groveton Lewis Foundry and Machine
Groyden Railway Spec. Corp.
Guayanilla Union Carbide Caribe Inc.
Gulph Gulph Woolen Mills
Hamburg Algonquin Chemical Co. Allen Sherman Hoff Co. Pennsylvania State Hospital for Tuberculosis Price Battery Corporation
Hannastown Jamison Coal and Coke Co., Hannastown Plant
Hanover Alloy Rod Plant Bethlehem Steel Corporation Hanover Power Co. Homeopathic State Hospital for the Insane Knoll Products, Inc. Lehigh Engineering Co. - West Plant Phillips Petroleum Co. Revonah Yarn Mills
Hanto Lehigh Navigation Electric Co.
Harleysville Keller Creamery
Harmarville Consumer's Mining Gulf Research & Development Harmar Coal Pittsburgh Plate Glass Co. Town of Harmarville - Sewage Treatment Plant University of Pittsburgh, Applied Research Center
Harmony Pittsburgh, Harmony, Butler and New Castle Railway Co.
Harrisburg Armstrong Contracting & Supply Badwell Co. Beckwith Mach Bodwell Co. Capital Products Central Iron & Steel Co. Columbia Rolling Mill Co., Vesta Furnace Dauphin County Prison Department of Motor Vehicles Building Dunham-Bush Fanny Farmers Candy Manufacturing Farm Show Building Flack Bros Inc. G.S.A General Electric Co. Glen Gery Shale Brick Corporation Governor's Mansion GPU Nuclear Corporation, Three Mile Island Power Plant Harrisburg State Hospital Harrisburg Light and Power Co. Harrisburg Steel Harrisburg Water Works Henry Laudenslager Hummelstown Water Supply J.D. Ferry Co. J.W. Koch Co. Jacoby Heating, ,Inc. Kaweener Co. Kim Bob Construction Lochiel Rolling Mill Co. Mann Brothers Metropolitan Edison-TMI Middletown Air Force Base Novingers, Inc. Parkway Apartments Paxtang Electric Co. Paxton Iron and Steel Co. Paxtron Furnaces Penn Mo Fire Brick Co. Penn State Educational Association Building Pennsylvania Power and Light Co.- Cedar Steam Electric Station Pennsylvania Turnpike Phoenix Iron and Steel Co. State Capital Building State Office Building, Commonwealth Ave & Foster St. State Police Office- Capitol Building The U G I Corporation Trans-Lux Theatre Colonial TRW Incorporated Tuscarora Oil Co., Ltd. Tyrone Iron Co. Union Carbide Corporation
Harristown Christ Evangelical Ref. Chuch
Harwood Harwood Electric Power Co.
Hatboro Hatboro Plumbing & Heating Meili & Worthington W.D. Reiniger & Sons
Hauto Hauto Steam Electric Station Lehigh Coal and Company Lehigh Coal and Navigation Co. Lehigh Industrial Power Co. Lehigh Navigation Electric Co. Pennsylvania Power & Light Co - Hauto Steam Electric Station Phoenix Utility Co.
Haven New York & Pennsylvania Paper Co - Boiler Room
Haverford Friends School Haverford College Haverford High School Haverford State Mental Hosptial
Hays Mullins Manufacturing Co.
Hazard New Jersey Zinc Co.
Hazleton Dorr Oliver, Inc. A. Barletta & Sons A. Pardee & Co. Beryllium Corp. Duplan Corporation E.I. Dupont De Nemours & Co. Edison Electric Illuminating Co. Electric Autolite Co. Evans Colliery Co. Ferro Corp. Hazleton Authority (aka Duplan Corp.) Hazleton Brick Co. Hazleton City Of Hazleton Electric Light and Power Co. Hazleton Water Works Jere Woodring and Co. Jones & Laughlin Steel Corporation Lehigh Valley Coal Co. Maryland Coal Co. Tere Woodring and Co.
Hecktown National Portland Cement Co.
Heilwood Pine Township Coal Co.
Helen Lincoln Coal and Coke Co.
Hellen Mills Northwestern Mining and Exchange Co.
Hellerstown Bethlehem Steel Thomas Iron Co. H. Blinderman & Son
Helvetia Rochester and Pittsburgh Coal and Iron Co.
Hemlock Creek Reirlay State Hospital
Hercules Hercules Cement Corp.
Herminie Ocean Coal Co.
Hershey Founders Hall, Rt. 322 Hershey Chocolate Corporation Hershey Foods Corporation Hershey Medical Center Hershey State Police Training Barri
Hillsville US Steel
Hilltown Furlong Construction Co. John M Grasse Elementary School
Hite Allegheny Plate Glass Co.
Hoboken Allegheny County Workhouse
Hoffman Station H. Westhoff- Florist
Hog Island Argonne
Hokendauqua Thomas Iron Co.
Holland Churchville Elementary School
Hollidaysburg Ambrose Augusterfer Corporation Hollidaysburg Power Station McLanahan Corp. Norfolk Southern Corporation Penn Central Pennsylvania Railroad Roaring Springs Paper Mill
Holmesburg City of Philadelphia -Home for Indigent & House of Correction Philadelphia and Bristol Water Co. Philadelphia County Prison Sachenmair
Holtwood Pennsylvania Power & Light- Holtwood Power Station Pennsylvania Water and Power Co.
Homer Babcock & Wilcox D M Trahan Proj Supt Edison International Edison Mission Energy Homer City Generating Station Midwest Generation Indiana County Railways Co. Philadelphia Electric Co.
Homestead Bethlehem Steel Corporation Carnegie Illinois Steel Corporation Carnegie Steel Co. Homestead Borough of Water Works Homestead Highland Street Railway Co. Homestead Works US Steel Howard Axle Plant Linde Air Products Co. Mesta Machine Co. Monongahela Electric Light & Power Co. Open Hearth Division Pangborn Corporation U.S. Steel Corporation Westinghouse Electric Co.
Hometown Bundy Tubing Co.
Hominy Nesque
Honesdale Katz Underwear Co. Wayne County Memorial Hospital
Hoovertown Kawecki Chemical Co.
Horatio Berwind White Coal Mining Co.
Horning Pittsburgh Terminal Railroad and Coal Co.
Horsham Pickles Steak House United States Naval Reserve Aviation Base
Houserville Penzoil Company, Plant #4 U.S. Steel Corporation - Saxonburg Sintering Plant
Houston Washington Steel
Houtzdale State Correctional Institute
Hovertown Eastern Foundry Co.
Howells Alpha Portland Cement Co.
Hudson Delaware and Hudson Co. Delaware Mine Pine Ridge Stirling Boiler House
Hundsondale Hazelton Water Co. Northeastern Water Co. Tidewater Pipe Line Co.
Huff Conemaugh Station Nemaugh Station- Indiana Co Unit #2
Hulmeville Vornhold Wall Paper
Hulton Suburban Water Co.
Hunlock Creek Hunlock Creek Powerhouse Luzerne County Gas & Electric Retreat State Hospital
Huntingdon Glenn M. Baker Heating & Plumbing Hudwood Irwin Company, Inc. Keystone Construction Co. L C Anderson Raystown Water Power Co. St. Corr Inst. At Huntingdon Troy Jack
Huntingdon Valley Keystone Wire & Iron Philmond Association and West Ave Invs West Ave Apartments
Idlewood St. Paul's Roman Catholic Orphan Asylum
Imperial Pittsburgh Coal Co.
Indiana Bowman Trucking Commonwealth of Pennsylvania - Dept. of Public Instruction Commonwealth of Pennsylvania - State Teachers College Hetrick and Wilson Homer City Power Station Indiana Cold Storage and Ice Co. Indiana Erie Company Indiana Provision Co. Indiana State Teachers College Keystone Power Plant Lucerne Mines Mccreary Tire & Rubber Co. Pennsylvania Electric Company, Seward Plant University of Pennsylvania
Ingo Portugalete Don Sotero Escarza
Inkerman Number 6 Colliery
Irwin Adams Mine Carnegie-Illinois Steel Corp. Carrie Furnace Irwin Works Jersey Cereal Food Company National Forge and Ordnance Co. North Huntington TWP High School Pennsylvania Gas Coal Co. US Steel Co. Westinghouse Electric & Manufacturing Co. Westmoreland Coal Co.
Iselin Pittsburgh Gas Coal Co.
Ivy Rock Alan Wood Steel Co.
Ivyland Spring Mill Manor
Janney Philadelphia Suburban Water Co.
Jeannette Carlin William Steam Boilers Diversitech General Elliot Steel Co. Elliott Turbomachinery Co., Inc. General Tire & Rubber Co. Jeannette Glass Co. Jeannette Shade & Novelty Co. Mckee Division Model Laundry and Dry Cleaning Co. Pennsylvania Rubber Co.
Jeansville Lehigh Valley Coal Co.
Jeddo G.B. Markle & Co. Highland Colliery #5 Jeddo Highland Coal Co.
Jefferson Glastic Corporation
Jenkinstown Standard Press Steel Co. Beaver Hill Apartments Beechwood Inn Philadelphia Suburban Gas and Electric Co. Standard Press Steel Co.
Jenner Consolidation Coal Co.
Jeololo G.B. Markle and Co.
Jermyn Jermyn Boiler House
Jersey Shore Jersey Shore Electric Street Railway Co. Susquehanna Silk Mills
Jerwyn Richard Finishing Company, Inc.
Joanna Bethlehem Steel Corporation
Johnsonburg Castanea Paper Co. Clarion Mills New York and Pennsylvania Co. Penntech Papers Inc. (aka New York & Penn Co, Inc.) Williamette Industries
Johnston Cambria Plant Cambria Steel Co. Lorain Steel Co.
Johnstown A.J. Haws & Sons Limited Air ProductionSales Beam Yard Power House Bessemer Steel Works Bethlehem Steel Corporation Blooming Mill Cambria Iron Co. Cambria Leasing Corporation Cambria Library Association Cambria Steel Co. Charles St. Suppes Citizens Light, Heat and Power Co. Conemaugh Power Station Conemaugh Valley memorial Hospital Crane Company Franklin Works Garfield Junior High School Gautier Steel Department Glidden-Durkee Hiram Swank & Sons Johnson and Co. Johnstown Water Co. Koppers Co. L-Air Liquide - Walnut Street Gate Lee Hospital Lorain Steel Co. Meadowvale School Memorial Hospital - Boiler Room Mill Creek Power House National Radiator Co. National Valve Open Hearth Palnts Penn Public Service Co. Pennsylvania Electric Co. Reliant Energy Mid Atlantic Semet-Solvay Co., Cambria Steel Co. Seward Power Plant Southern Cambria Street Railway Co. St. Joe Lead US Steel Corporation Wire Mill
Johnsville U.S. Nacal Air Division
Josephine Josephine Furnace and Coke Co.
Josephtown Koppers Co. St Joe Minerals St. Joe Resources Co. St. Joseph Lead Co.
Juanita Pennsylvania Railroad
Junction Milliam A Colliery Light and Power
Kabuta Koppers Co. (aka Arco/Polymers, Inc or Sinclair-Koppers)
Kane Kane Area Junior High School
Karns City Pennsylvania Refining Company Co. Penreco/Pennsylvania Refining
Kaulmont Armour Leather Co. Melville Corbett Co.
Kelogpany Charmin Paper Products Co.
Kennerdell Pittsburgh Plate Glass Co.
Kennett Square American Road Machine Co. DuPont Chemical J.B. Swayne & Son West Chester, Kennett & Wilmington Electric Railway Co. National Vulcanized Fiber
Kimberton Monsey Products
King of Prussia Cochrane D&V Crane Corp. General Electric John Wanamaker Store King of Prussia Shopping Center Pennsalt Chemicals Corporation Western Electric Co. White Pigment Corporation Williard Ince
Kingsport United State Merchant Marine Academy
Kingston Bartels Brewing Co. Bucknell University Culp Industrial Insulation Co. Delaware, Lackawanna & Western Railroad Co. East Boston Colliery Erie Lackawanna Railroad Eureka Kingston Coal Co. Lehigh Valley R. R.- Pringle Street Siding Mary Street Project Marywood College Miseracordia- Student Union & Dorms P P & L Office Building Penn High School W.G. Payne and Company Wilkes College Wise
Kintersville Albert Stover
Kittanning Allegheny Energy Armstrong Power Station Freebrook Corporations H.H. Brosius Kittanning Ceramics Co. Kittanning Plate Glass Co. Linde Air Products Co. Reedsville Power Station West Penn Power Co - Armstrong Power Station
Knox Glass Containers Corp.
Kobuta Koppers Co. Sinclair Koppers Co.
Koppel Babcock & Wilcox Co. Dynamic Metal Forming, Inc. Tub Prod.
Kulpmont Kanmak Mills
Kulpsville Nice Ball Bearing
Kutztown Kutztown Foundry and Machine
Kylertown Mountain View Center, Inc.
Labanon Lackawanna Iron and Steel Co.
Labelle J & L Steel
Laceyville Cornell manufacturing Co.
Lackawanna County Walster Corp.
Lafayette American Bank W.C. Hamilton and Son Witmarsh Township Incinerator William Penn P.O.
Laflin Traders Coal Co.
Lake Charles Olin Mathieson Chemical
Lakeland Lakeland Hospital
Lambert American Coke Co. H.C. Frick Coke Co.
Lancaster A.C. & S. ACCO- Building Insulation Alcoa- Aluminum Company of America American Paper Products Co. Armstrong Contracting & Supply Armstrong Cork Co. Burle Industries, Inc. Carbon malleable Co. Citizens Electric Light, heat and Power Co. City of Lancater Dept. of Water Closure Plant Building 13-D Flr Plt Bldg 201-B Conestoga Traction Co. Consolidated Cigar Co. Decorating & Display Studio Edison Electric Illuminating Co. Everts and Oerdeer, inc. Franklin Marshall College Hamilton Watch Co. Hess Department Store, Harrisburg Hilton Hotel Host Motel Howe Sound Co. Howmet Corporation ITT Fluid Products John Tearney Heating & Plumbing Kelloggs Lancaster Closure Plant Lancaster Cork Works Lancaster County Railway and Light Co. Lancaster Floor Plant Lancaster Malleable Casting Co. Lancaster Water Works National Borax Co. New Air Cond. System Closure Plant New Office Building New Senior High School Park City Shops - Route 30 Bypass Penn Dairies Pennsylvania Power and Light Co. Quaker State Metals Co. R.C.A. Victor Raido Corp of America/RCA Reese Metal Products Riggs Distiller & co. Schick Inc. Smoketown Elementary School Sprenger Brewing Co. Springs Cotton Mills SS Bertz Whse St. James Episcopal Church St. Joseph Hospital Suburban Propane Thaddeus Stevens Industrial School The Spring Cotton Mills UGI Corporation Wall & Shand, Duke and Vine Sts. William J. Mimm Lancaster Floor Plant Woolworth BUilding YMCA Building
Landisville Penn Mall Iron
Landsdowne Wildman Arms Apartments
Langeloth American Zine & Chmical Co. Climax Molybdenum Co.
Langhorne Middletown Elementary School Delaware Valley Hospital Eastern State School Neshaminy High School
Lansdale Advanced Specialty Company American Olean Tile Co. Electric Light Department J.W. Rex Co. Lansdale Tube Merck and Co. Nicolet Industries Rolle Manufacturing Co. Shelly Brothers Inc. Stanbridge apartments YMCA Zenith Corporation
Lansford Lehigh Coal and Iron Company Lehigh Coal and Navigation Co.
Large Westinghouse Electric Co.
Latrobe American Locomotive Co. Citizens Bank Citicorp Venture Capital Imagining Systems Kennametal, Inc. Latrobe Area Hospital Latrobe Brewing Co. Latrobe Construction Latrobe Electric Steel Co. Latrobe Froge & Spring, Inc. Latrobe Hospital Labrobe Steel Co. Latrobe Works Railway Steel Spring Co. Vanadium Alloys Steel Co. Vasco Vulcan Mold
Laureldale Laureldale Plant Western Electric Co, Inc.
Laurelton Commonwealth of Pennsylvania - Laurelton State Village
Lawrence Junction Pennsylvania Railway Co.
Lawrenceville Hunter Saw & Machine National Valve New York State Electric & Gas Corp. New York State Natural Gas Peoples Natural Gas Co.
Lawton Lease Bradford Supply Co.
League Island United State Navy Yard
Lebanon Aluminum Company of America American Iron & Steel Co. Bethlehem Steel Corp. Central Works Cleaver Brooks Co. J. And R. Meily John A. Rigg Lackawanna Iron and Steel Co. Lavino Furnace Co. Lebanon Blast Furnace Co. Lebanon City County Building Lebanon Concentrator Plant Lebanon Furnaces Lebanon Steam Co. Lebanon Valley Street Railway Co. Pennsylvania Bolt and Nut Co. Pennsylvania Steel Co. West End Rolling Mill Co.
Lee West End Coal Co.
Leechburg Allegheny Ludlum Steel corp. American Sheet & Tin Plate Co. American Sheet Steel Co. Leechburg Supply Co. West Leechburg Steel Co.
Leesport C.F. Luppold
Leetsdale Bethlehem Steel Corp C.G. Hussey & Co. Copper Range Co. Hussey Copper Ltd.
Lehigh County A.T.&T. Solid State Technology Center Chapman Henry McKeen and Co. Homeopathic State Hospital Parkway Manor Elementary School Tarinto Monument Works Thermal Engineering Inc
Lehighton Lehighton Electric Light, Heat and Power Co.
Leith H.C. Frick Coke Co. Leith Mines
Lemoyne United Electric Co.
Lenni Aldon Rug Mills
Leola Aggregates Equipment Co.
Lester Delaware Insulation Co. Lester Industrial Park Marathon Co. Mechanical Insulation Co. Pens Valley Insulation Westinghouse Electric Co.
Letterkenny Letterkenny Depot
Levittown Ben Franklin Elementary School Econolodge Hunter Manufacturing Racquet Club East Apartments Roebling Steel Woodbourne Apartment Association
Lewisburg Bucknell University Evangelical Community Hospital
Lewistown American Vericose Corp. American Viscose Plant Lewistown and Reedsville Electric Railway Co. Logan Iron and Steel Co. Sitkin Metal Standard Steel
Lexington Westinghouse Electric Co- Steam Division
Library Allegheny Gasket Consolidated Coal Co. Pittsburgh Coal Co. Shops Pittsburgh Consolidation Coal Co
Lickdale Lickdale Iron Co.
Light Street Dent Plumbing & Heating, Inc.
Lilly Lilly Washington School Penn Jersey Transmission Corporation W.H. Piper and Company Washington High School
Lime Ridge Champion Valley Farm Joseph Campbell Pet Foods
Limerick Limerick Nuclear Power Plant Philadelphia Electric -Limerick Nuclear Power Plant
Lindsey Berwind White Coal Mining Co.
Linfield Kinsey Distilling Co.
Linwood D. Trainer and Sons Robertson Fuel Oil
Lititz Morgan Paper Co. Warner Lambert Pharmaceutical Co.
Llewellyn Albright Coal Co.
Lock Haven American Aniline Products Co. Culp Industrial Insulation Co. Hammermill Paper Co. Immaculate Conception School International Paper Co. James Wolfenden New York & Pennsylvania Co, Inc. New York & Pennsylvania Paper Co - Boiler Room Pennsylvania Pulp and Paper Co. Potlach Paper Mill Zimmerli Gym Lock Haven University
Locust Gap Locust Spring Colliery Philadelphia and Reading Coal and Iron Co.
Logans Ferry Aluminum Company of America
Lost Creek Packer Colliery #4
Lower Burrell Braeburn Alloy
Lower Mount Bethel P.P.&L. - Turbine
Lucerne Rochester & Pittsburgh Coal and Iron Co.
Luxor Jamison Coal and Coke Co.
Luzerne County Hunlock Creek Luzerne County Gas and Electric Co.
Lykens Lykens Valley Coal Co.
Mackungie Mack Truck Empire Iron and Steel Co William A Shoemaker School
Madison Keystone Coal and Coke Co. Keystone Shaft Mine
Mahanoy City Buck Mount Colliery #3 Charles D. Kaier Company Limited Mahanoy City Water Co. Peoples Light Heat and Power Co. Primrose Colliery
Mahanoy Plane Harleigh Brookwood Coal Co. Philadelphia and Reading Railroad Co. Philadelphia Read Coal and Iron Co.
Mahoningtown Universal Rundle Co.
Mahoopany Charmin Paper Products Co.
Malvern J. Bishop and Co. Weyeth Laboratories, Inc.
Mammoth Station Mamoth Plant
Manayunk Container Corporation of America Mc Dowell Paper Co.
Manheim Raybestos Manhattan Plant United States Asbestos Co.
Mansfield Mansfield State College Pennsylvania Power & Light
Mantua Park Shops
Maple Glen Supplee Memorial Presbyterian Church
Marcus Hook Allied Chemical American Viscose Corporation Avtex Fibers Inc (aka American Viscose) B.F. Refinery Benzol Products Co. BP Oil Corporation, Marcus Hook Refinery Congoleum Company, Inc. Congoleum-Nairn, Inc. Continental Distilling Corp/Knabb Barrel Div. General Chemical Co. J.J. White Co. Marcus Hook Plant National Aniline and Chemical Co. Pure Oil Co. Sinclair Refining Co. Stauffer Chemical Co. Sun Comppany, Inc. Refinery Sun Oil Co. Sun Petroleum Co. Texas Co United Roofing and Manufacturing Co. Viscose Company
Marianna Cambria Steel Co. Pittsburgh Buffalo Co.
Marienville Glass Containers Corp.
Marietta E.J. Lavion and Co. Marietta Carpet Plant Marietta Metal Products Corp. US Aluminum Corp.
Markleysburg Conemaugh Station - Miller Planner Bldg Miller Planner Building
Mars Keystone Resources
Marshalsea City of Pittsburgh Department of Charities
Martins Creek Alpha Portland Cement Co. Bechtel Steel Plant Martins Creek Power Station Pennsylvania Power & Light Co. William Krause and Sons Cement Co.
Maryd Maryland Coal Co.
Masontown Allegheny Energy Supply Co. Allegheny Power Co - Hatfield Ferry Station Hatfield Power Station Masontown Bridge, Hatfield Power Station Monongahela Power Co. Sharon Coke Co.
Mauch Chunk Carbon Transit Co. Excelsior Steam Planning Mill J.S. Wentz Mauch Chunk Crystal Ice Co. Mauch Chunk H. Power and Electric Light Co. Mauch Chunk Lehighton and Slatington Railway Co. Midvalley Coal Co. Silver Brook Coal Co.
Mayburg Fionesta Valley Chemical Co. Watson Lands Lumber Co.
Mayfield Hillside Coal and Iron Co. Simpson and Watkins
Mcadoo Consolidated Cigar Corp.
McAuley Tive Water Pipe Line Co.
McClellan McClellan Storage Yard
McConnellsburg McConnellsburg Medical Center
McCrae Socony Vacuum Oil Co.
McDonald Citizens Electric Light and Power Co. Citizens Water Co. Port Cherry School
McKean Erie Industrial Insulation
McKees Rocks Alcoa Bell Telephone Carnegie Tech Desuperheater Station - Reducing Station Duquesne Brewing Co. Eliza Pipe Shop Federal Enameling and Stamping Co. Ft. Pitt Malleable & Grey Iron Co. George V. Hamilton, inc. Hilton Hotel James McKay Co. Karl R.H. Knapp, Inc. Koppers Co. Levinson Steel Lockhart Iron and Steel Co. Mckees Rocks Ind. Enterprises National Aniline Division- USS Chemicals Olin Mathieson Chemical Corp. P&LE Railroad Pennsylvania Malleable Co. Pittsburgh Coke & Chemical Co. Pittsburgh Lake Erie Railroad Co. Pittsburgh Steel Co. Pressed Steel Car Co. R.H. Hickman Co. R.R. Shops River Toad Schoen Steel Wheel Co. Shipping Atomic Power Station Singer Ice Co. Skin & Cancer Clinic US Steel Corporation Van Dorn Company Heat Tire Weirton Steel Westinghouse Electric Co. Youngstown Sheet & Tube Co.
McKeesport American Sheet Steel Co. Boston Iron and Steel Co. City of Mckeesport Water Dept. Enamel Products & Plating Co. Firth Sterling Steel Co. Fort Pitt Steel Casting Kelsey Hayes Wheel Co. Marker & Sons Mckeesport and Youghiogheny Ice Co. Mckeesport Coating Co. Mckeesport Hospital Mckeesport Manufacturing Co. Mckeesport Tin Plate Co. Mckeesport Water and Light Co. Mckeesport Water Purification Works Mckeesport Works Monongahela Furnaces National Galvanizing Works National Rolling Mill National Tube Co. National Tube Works Co. People Ice and Cold Storage Co. Peters and Company Peters Packing Co. Pittron Pittsburgh Mckeesport and Westmoreland Railway Co. Tube City Brewing Co. US Steel Corporation W. Dewees Wood Co.
McMurray Bricmont & Associates
Meadow Lands Duquesne Light Co. Industrial Gasket & Shim Co
Meadowbrook Holy Redeemer Hospital
Meadville Allegheny College American Brake Shoe Co., National Bearing Division American Viscose Corporation Erie Railroad Co. FMC Corporation, American Viscose Corp. Northwestern Pennsylvania Railway Co. PPG Industries Peoples Incandescent Light and Power Co. Sunbeam Equipment Co. Viscose Co.
Mechanicsburg Board of Education Capitol Products Co. Miller Robert L Naval Supply Depot Salem Park Townhomes
Media Delaware County Courthouse Pennsylvania Railroad Philadelphia Suburban Water Co. Riddle Memorial Hospital Williamson Trade School Williamsport Free School of Mechanical Trades
Mehoopany Charmin Paper Products Co. Procter and GambleCo.
Mercer Mercer County Courthouse Z&L Lumber Co.
Mercersburg Loewengart & Co. Inc The Mercersburg Academy
Mertztown Atlas Mineral Products Inc.
Merwin Alcoa Technical Center Aluminum Company of America
Meshoppen Charmin Paper
Meyersdale Meyersdale Jr.-Sr. High School
Middletown AM. Department Amergen Energy Co. American Tube & Iron Co. Armco Babcock & Wilcox Central Gas & Electric Edison Light Co. Metropolitan Edison Co., Three Mile Island Middletown Car Co. Middletown Elementary School Olmsted Air Force Base Orr Sembauer Co. Three Mile Island Nuclear Plant U.S. Air Force - Olmsted Field
Midland Colt Industries Crucible Steel Co. E.W. Bliss LTV Sheet and Tube Mackintosh Hemphill Midland Steel Co. Midland Works Naval Ordnance Works Pittsburgh Crucible Steel Co. Pittsburgh Steel Rush Boiler Co. S. Jarvis Adams Co Treadwell Construction Co.
Midvale Reynold Machine
Mifflin Township Westinghouse Electric Co - Atomic Power Div - Bettis Field
Milbon Milbon Manufacturing Co.
Milesburgh Milesburg Power Plant West Penn Power Co West Penn Powerhouse
Mill Village Erie Cambridge Union and Corry Railway Co.
Millersburg Letort Elementary School Moore Street Elementary School Millersburg University - Lenhardt Hall
Millmont Alvernia College
Millville Girton Manufacturing Co.
Milton American Car & Foundry Co. Gold Bond Building Products Merritt Chapman & Scott Milton Manufacturing Co. National Gypsum Co. S.J. Shimer and Sons
Mineral Point Johnstown Water Co.
Miners Mills Algonquin Coal Co. Laurel Run Coal Co.
Minersville Buck Run Coal Co. Colonial Collieries Co. John Veith Colliery Leisenring and Co. Lytle Coal Co. Philadelphia & Reading Coal & Iron Co. Pine Knot Colliery Pottsville Water Co. Treadkill Buck Run Coal Co.
Minquon Weyerhaeuser Co.
Modena Jessup and Moore, Chester Mills
Mohnton Leninger Knitting Mills
Monaca Applied Energy Services Corporation Arco Chemical Koppers Arco Polymer Colonial Steel Co. Horsehead Industries Koppers Company, Inc. LTV Steel Phoenix Glass Co. Pittsburgh Screw & Bolt Co. Pittsburgh Tool Steel Wire Pittsburgh Tube Sinclair Koppers Co. St Joe Smelting St Joseph Lead Company Superior Drawn Steel Co. United State Sanitary Manufacturing Co. Vanadium Alloys Steel Co. Vasco Zinc Smelting Division
Monarch H.C. Frick Coke Co.
Monessen American Sheet and Tin Plate Co. Monessen Steel Co. Monessen Works Page Woven Wire Fence Co. Pittsburgh Steel Co. Pittsburgh Steel Corp (aka Wheeling Pittsburgh Steel Co.) Wheeling Pittsburgh Steel Pittsburgh Steel Co.
Monmouth H.C. Frick Coke Co.
Monongahela Graham Foundry and Machine Co. Hatfield Power Station Liggett Spring and Axle Co. Masontown Bridge, Hatfield Power Station McGrew Parkinson and Co. Mitchell Power Station Monongahela Electric Light Co. Monongahela Power Station West Pennsylvania Power Co.
Monroeville College Park Koppers Company, Inc. Monroeville High School Monroeville Mall Our Lady of Mercy School Thermal Transfer Corp. US Steel
Mont Alto Park Mount Alto Sanitarium
Montgomery County Reminton Rand Rorer Group, Inc. Shady Grove School Upper Manover Twp North of E Greenv Whitemarsh Township William Penn P.O.
Moodville John Tyson
Moressen Page Woven Wire Fence Co.
Morganza Pennsylvania State Reform School Pennsylvania State Training School
Morristown McCarter Iron Works
Morrisville A.E. Staley Manufacturing Co. - Corn Plant Commons at Fallsington Fairless Hills Steel Mill Fairless Works First Presbyterian Church Norland Shipping & Trading Co. Pennsbury Pottery Co. Phodia, inc. Staley Syrups Stauffer Chemical Co. US Steel Corporation Victor Chemical Works Vulcanized Rubber & Plastics Co. Wheelabrator Falls Wte
Morton A.S. Siter & Sons Boeing Vertol
Moscow Elenger Ind.
Mount Joy Mount Joy Vo-TechBuilding National Standard
Mountain Top CertainTeed Fibrous Glass Products Foster Wheeler Corp.
Moyamensing Philadelphia County Prison
Mt. Braddock Foseco Inc. Liberty Powder Co. United State Powder Co., Explosives Division
Mt. Carmel Arcwire Corporation Colonial Collieries Co. Edison Electric Illuminating Co. Girard Coal Co. Lehigh Valley Coal Co. Midvalley Coal Co. Philadelphia and Reading Coal and Iron Co. Scott Colliery Susquehanna Collieries Co. Union Coal Co.
Mt. Holly Springs Kimberly Clark Corporation
Mt. Lebanon Mount Lebanous Ice Co. St. Bernard's Church
Mt. Lookout Pennsylvania Coal Co.
Mt. Pleasant H.C. Frick Coke Co. Mount Pleasant Electric Light and Power Co.
Mt. Pocono Stricklands Hotel
Mt. Union Aetna Explosives Co., Inc. Harbison-Walker Refractories Co. W.H. Haws Fire Brick Co.
Mueller Newcor
Mufflintown Juniata Co.
Munhall Carnegie Library Carnegie Phipps and Co. Limited Carnegie Steel Co. Homestead Steel Works U.S. Steel Corporation
Murraysville New York State Natural Gas
Myerstown WHitmoyer Laboratories
Nadine Pennsylvania Water Co.
Nanticoke Delaware, Lackawanna and Western Railroad Co. Electric Power Station Glen Alden Coal Co. Guaranty Silk Corporation Peoples Street Railway Co. Susquehanna Coal Co. Truesdale Colliery
Nashville Franklin Building Supply
Natrium Pittsburgh Plate Glass Co.
Natrona Heights Allegheny Ludlum Pennsylvania Salk Manufacturing Co. Abington
Nazareth Dexter Portland Cement Co. Lone Star Cement Natural Gas Pipline Nazareth Cement Co. Nazareth Portland Cement Co. Nazareth Steel Fabricators Penn-Allen Cement Co. Penn Dixie Cement Co. Phonix Cement Co. Schoeneck Farms Inc.
Neshaminy Eastern State School
Nequehoning Lehigh Coal and Navigation Co.
Neville Island Allegheny Chemical Badger US Steel Chem Plant Bethlehem Steel Corporation Davison Coke and Iron Co. Dravo Shipbuilding Green Bag Cement Gulf Refining Co. Island Petroleum Company Marquette Cement Neville Chemical Co. Neville Island Coke & Chemical Pittsburgh Activated Carbon Co. Shenango Steel US Steel USS Chemicals Vulcan Detinning Co.
New Alexandria Franklin Lumber Co. Keystone Coal and Coke Co.
New Avoca Old Forge Collieries
New Boston Mill Creek Coal Co.
New Brighton Armstrong World Industries Beaver Valley General Hospital C.C. and E.P. Townsend Co. Dravo Corporation Republic Steel Standard Sanitary Manufacturing Co. Townsend Co. Valley Electric Co. Van Horn Ely William Leard Co.
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New Castle American Brake Shoe Co. American Sheet & tin Plate Co. Baltimore & Ohio Railroad Co. Barnes Construction Co. Benjamin Franklin Junior High School Boston & Ohio Railroad Co. Carnegie Steel Co. Char. Wallace Chrysler Delworth Paper Co. G. Ramsey & Sons G.W. Johnson Co. H. Koppers Co. Lehigh Portland Cement Co. Mahoningtown Shops Meata Machine Co National Steel Co. New Castle Electric Co. New Castle Junior High School New Castle Light, Heat and Power Co. New Castle Plant New Castle Shovel Co. New Castle Stamping Co. New Castle Water Co. Ohio Pennsylvania System Orion Power Holdings Inc. Penn Power Co. Ramsey Hardware & Paneling Co. Rosena Furnace Shenango China Co. Shenango Pottery Co. Shenango Valley Steel Co. United Engineering & Foundry Co. Universal Rundle Co. Vulcan Foundry and Machine Co.
New Columbia National Gypsum Co. - Boiler House
New Cumberland New Cumberland Army Depot New Cumberland General Depot - Army Aviation FAC, Hanger & Shops
New Florence Conemaugh Power Station Huff Power Station Pennsylvania Electric Co. Reliant Energy Wholesale Group
New Freedom American Insulated Wire Corp.
New Holland Garden Spot Junior High Meyer Zausner Inc. Zausner Foods Corp.
New Hope Union Mills Paper Manufacturing Co.
New Iberia Iberia Sugar Cooperative, Inc.
New Kensington Alcoa Research Laboratories American Sheet & Tin Plate Co. Citizens General Hospital General Electric Co. Pittsburgh Reductiono Co. Union Spring Manufacturing Co. US Aluminum Co.
New Norristown Koppers Co, Inc. - Tar Products Div.
New Oxford New Oxford Junior High School
New Philadelphia Joy Manufacturing Lehigh Coal and Navigation Co. Ohio Service Co.
New Salem Orient Coal and Coke Co. Republic Iron and Steel Co. Struthers Coal and coke Co.
New Stanton Inn of American
New Tripoli Lynn Heidelberg School
New Wilmington Farmers Cheese New Wilmington City Hall & Courthouse
Newell Allied Chemical Fayette City General Chemical Co. Peabody Vertical Air Heater
Newmanstown Sheridan Supply Co.
Newport Juniata Furnace and Foundry Co. Marshall Brothers and Co. Susquehanna Coal Co.
Newtown Arco Chemical Bucks County Community College Buck County Electric Railway Co.
Nicetown George W. Blabon Co. J.J. Felin Co., Inc. Link Belt Engineering Co. Midvale Co. Midvale Heppenstall Co. Midvale Steel Co. Nicetown Plate Washer Co. Niles-Bement-Pond Co. Number 3 Boiler House
Norristown Allenwood Steel American Asbestos Textile Co. Asphalt Paving & Supply Borzillo Bakery Handy & Harman Tube Co. Mccarter Iron Nicolet Industries Norristown Hospital Norristown Magnesia and Asbestos Co. Norristown Municipal Sanitation Dept. Norristown Post Office Norristown State Hospital Peco Barbados Island Powerhouse Peco-Cromby Station Philadelphia Electric Co. Sacred Heart Hospital Saint Joseph's School State Hospital for the Insane Synthane-Taylor Corp (aka Taylor Fibre) Welding Engineers Wildman & Schwartz Wildman Jacquard Co.
North Cornwall Lackawanna Iron and Steel Co.
North East Grape Products Co. Welch Grape Juice Co.
North Juneau Buffalo & Susquehanna Coal & Coke Co.
North Wales Green Tweed Leeds & Northrop Co. (aka Riggs, Distler & Co.) Zenith Manufacturing Plant
Northhampton American Bridge Division Atlas Cement Co. Atlas Portland Cement Co. Universal Atlas Cement
Norwood Macaw Brothers Savoia Property Management Co.
Nottingham Herrs Potato Chips, Inc. Lehigh and Wilkes Barre Coal Co.
Noxen J.K. Mosser Co.
Numhall Carnegie Steel Co.
Oakdale Aetna Chemical Co. Armstrong Cork & Insulation Co. Missile Master Facilities
Oakmont Edgewater Corporation Edgewater Steel Co. US Gypsum Co. Edgewater Steel Co.
Oaks B F Goodrich Tire Co. Philadelphia Rubber Works Co. Synthane Corporation
Ogonty Yorktown Theatre
Oil City American Industrial Contracting Electro Alloy Corp. Foster-Wheeler Koppers Co. Oil City Glass Co. Oil Well Supply Co Pennzoil Refinery
Oliver Oliver Snyder Steel Co.
Olyphant Delaware and Hudson Co. Hudson Coal Co. Olyphant Colliery Olyphant Power Plant
Oneida Cross Creek Coal Co. Oneida Colliery
Orbisonia East Broad Top Railroad and Coal Co. Rockhill Iron and Coal Co.
Oregon Sun Company, Inc.
Orient Orient Coke Co.
Ormrod Lehigh Portland Cement Co.
Orrtanna Knouse Foods Cooperative, Inc. Orrtanna Canning Co.
Orwigsburg Blackwood Colliery Lehigh Valley Coal Co.
Osceola Berwind White Coal Mining Co.
Overbrook Overbrook Steam Heat Co. Pennsylvania Institute for Instruction of Blind St. Charles Seminary
Oxford Oxford Cabinet Co. Peoples Coal Co.
Palmerton New Jersey Zinc Co Palmerton Elementary
Palmyra Church of the Holy Spirit Kraft Foods Co.
Palo Alto Eastern Pennsylvania Railways Co. J.G.White and Co.
Paoli Burroughs Corporation Paoli Elementary School Pennsylvania Railroad
Park City Park City Shopping Center Park City Stores
Park Place Lehigh Valley Coal Co. Lentz Lilly and Co.
Parker Glass Containers Corp.
Parkesburg American Hardware Supply Parkesburg Iron Co. Porcelain Products
Parsons Baltimore Electrical Power Plant Delaware and Hudson Co. Number 6 Electric Powerhouse
Patton North Cambria Railway Co.
Pauli Burroughs Corporation
Paynes Station Lehigh Portland Cement Co.
Peach Bottom Knouse Corporation Peach Bottom Nuclear Plant Philadelphia Electric Co.
Peckville Mount Jesseys Coal Co. Simpson and Watkins Temple Iron Co.
Pen Argyl Argyl Manufacturing Co. Penn Argyl High School RFG 1 - RFD #1
Pencoyd A. & P. Roberts Co. American Bridge Co. Bridge Shop Carnegie Illinois Steel Corp. Martin and William Nixon Paper Co. Pencoyd Iron Works
Pennsauken Penn Jersey Boiler Co.
Pennsburg C&D Battery
Perkasie Oliver Nace Greenhouse
Perrysburg Chrysler
Perulack Penn Jersey Transmission Corp.
Petrolia Daugherty Refinery Koppers Co. L Sonneborn Sons Inc. - Daugherty Refinery Div. Witco Chemical Corporation
Peukiomen Griffin Emanuel Brick Co.
Philadelphia A. Blumberg & Sons A. Darrah Contractors A. Hirsch Air Company A. Moe & Company A.C. & S., Incorporated A.J. Cameron Company A.K. Garrett Company A.P. Green Fire Brick Co. A.Y. Michie Academy of Music Ace Motor Co. Achenbach & Butler, Inc. Acme Hardesty Industries Acme Heat Treat, Inc. Acme Iron & Metal Co. Acme Markets Acme Tea Co. Acme Warehouse Ada Lewis Junior High School Adelta Manufacturing Adley Express Co. Air Master Ajax Metal Co. Alan Wood Steel Alex Crow & Son Allied Chemical Aluminum Company of America Aluminum Smelting Corporation AM Gas Electric Co. Amber Realty Co. American Bank Note Co. American Baptist Publication Society American Bridge Co. American Can Co. American Cigar Co. American Dredging American Engineering Co. American Gas and Electric Co. American Pile Fabric Co. American Pipe Manufacturing Co. American Railway Co. American Salvage Co. American Stores Co., Inc. American Sugar Co. American Type Founders Co. American Viscose Amoroso Bakery Amstar Sugar Factory Anthony Compola Plumbing A.P. Green Refractories Arcade Building Arcade Real Estate Co. Architectural Steel Arco Atlantic Refinery Argo Mills Armour and Company Armstrong Contracting & Supply Art Loom Corporation Asten Hill Manufacturing Athletic Club of the Schuylkill Navy Athos Steel Mill Atlantic & Gulf Co. Atlantic City Electric Atlantic Electric Motor Atlantic Flour Mills Atlantic Metals Corporation Atlantic Oil Refinery Atlantic Pipe Line Co. Atlantic Port Contractors, Inc. Atlantic Refining Co. Atlantic Richfield Auto Steam Equipment Co. Aylwin B.V.H. Hotel Associates Baeder Adamson & Co. Bailey Banks & Biddle Building Baker Carver & Morrel Baldwin Locomotive Works Ballied Chemical & Dye Corporation Baltimore and Ohio Railroad Co. Bank of North America Barber Asphalt Paving Co. Bargain City Barkley Apartments Barney Barone Launch Service Barrett Chemical Barretts Roofing Basic Construction Co. Baugh Chemical Beaumont Birch Co. Beeber Junior High School Bell Telephone Building Bell Telephone Co. Bellevue Stratford Hotel Co. Belmont Oil Works/ Belmont Petroleum Refinery Bement, Miles & Company Ben Franklin Hotel Bendix Aircraft Benjamin Foster Company Benjamin Franklin Elementary School Benjamin Rush Middle School Bergner and Engle Brewing Co. Berwind White Coal Mining Co. Betty Brackly, Lynsk Bickley Furnaces, Inc. Bilc Super Market Binder Cooperage Bingham House Blakeley Blumenthal Brothers Board of Education Buildings Boeing Vertol Co. Boericke and Tafel Building Boger & Crawford Bok Technical High School Bonair Foundry Co. Bornet Cleaners Bornot, Inc. Boston & Ohio Railroad Co. Botany 500 Botfield Refractories Co. BP Oil Corporation Bradlee & Company Brand Insulation Brandley Smith Breckinridge Bregy Elementary School Broad Street Station Bromley Lace Mill Brooks Brothers Brown Brothers & Company Brown Instrument Co. Browning, King & Company Building Brunswick Asbestos Co. Inc. Brunswick Fabricators Brush Electric Light Co. Bryant School Buck Buckhorn Portland Cement Co. Budd Company Buick Motor Division Bulletin Building Bustleton Elementary Butler Byberry State Mental Hospital C. Schmidt & Sons Brewing Co. C.A. Spalding C.C. Harrison Building C.C. Knight and Company Building C.E. Monday and Company C.F. Simonins and Sons C.H. Geist Company C.H. Maslin and Sons C.H. Wheller Manufacturing Co. Caledonian Dye Works Cambria APA 36 Cambria Steel Company Camden Copper Works Camden Fibre Mills Campbell Souop Co. Carey Brothers Wall Paper Manufacturing Co. Catalytic, Inc. Celotex Corporation Central High School CertainTeed Products Co. Champion Construction Co. Charles E. Johnson and Company Charles E. Langcake Charles Lennig and Co., Inc. Charles McCaul Co. Charles T. Schoen Chelten Supply House Cherry River Paper Co. Chestnut Hill Hospital Children's Hospital Children's Reception Welfare Christian Street Schuylkill Station Cities Service Oil Co. City Mill City of Philadelphia Dept. of Streets Sanitation City of Philadelphia Yard & Garage Office Building Civic Center Clearfield Bank Cleveland Worsted Mills Co. Coke Cole Collieries Supply and Equipment Co. Columbia Plumbing Supply House Columbian Carbon Co. Commerce Square Commerce Street Building Commercial Alcohol Commonwealth Title Insurance and Trust Company Connelly Containers, Inc. Connelly Paper Co. Conshohocken Worsted Mills Co. Consolidated Railway Corporation Container Corporation of America Continental Distilling Company Convention Center Conyngham Coolbaugh Corn and Corn Cob Products Cramp School Cramps Shipbuilding Co. Crescent Iron Croft and Allen Co. Cross Brothers Meat Packing Crown Cork and Seal Crown Paperboard Co. Crown Products CSX Transportation Cudahy Packing Company Curtis Publishing Co. D. Oher Engineering Co. D.B. Fuller D.L. Molden and Brother Dahlgren Daniel J. Keating Darby Darlington Building Day De Witt P Henry Co. Defense Plant Corporation Defense Supply Agency Delancy School Delaware Alloy Forge Delaware Asbestos Delaware River Cordage Mill Delaware Station Delaware Storage and Freezing Co. Delaware Waterside Station Delta Equipment Co. Delta Finishing Co. Dent Department of Safety Deval Corporation Dill and Collins Co. Dodge Steel Co. D'Olier Engineering Co. Domino Sugar Refinery Donahue & Weber Construction Co. Donovan Cement Dougherty Bachran Doyle and Co. Doylestown and Willow Grove Railway Co. Dr. W.A. Drysdale Drake Hotel Dravo Corporation Drexel Institute Drexel University DuPont Chemical Durham Public School E. Bergendahl E.B. Leaf Co. E.C. Knight and Company E.F. Houghton and Company E.G. Budd Company E.I. Dupont de Nemours & Company E.J. Lavion & Company E.L. Rothschild Building Earbeu Harding and Company Eastern Asphalt Co. Eastern Hydraulic Press Brick Co. Eastern Penn Psychiatric Institute Eaton Corporation Edgecomb Steel Edison Electric Light Co. Edward Fay and Son Edwin Harrington Son and Company Einstein Medical Center Electric Company of America, Land Title Building Electric Storage Battery Co. Electric Traction Co. Elliot Ellis Ellwood Elementary School Empire Mills Enterprise Galvanizing Episcopal Hospital Epsilon Zeta Alumni Association Equitable Illuminating Gas Light Co. Erben Harding Co. Erwin Plumbing Estate of James Lord Jr. Estate of Stephen Greene Estate of William Weightman Eureka Limestone Eureka Stone Quarry, Inc. Exchange Building Exelon Generation Co. Exide Battery Co. F.A. Poth Brewing Co. F.C. Roberts and Company Engineers F.G. Vogt and Sons F.W Darlington C.E. F.W. Tunnell Glue Manufacturing Fairhill Apartments Fairmoint Wooster Mills Fairmount Construction Co. Fairmount Park Commission Fairmount Park Transportation Co. Fayette R. Plumb, Inc. Federal Container Co. Federal Office Building Feita Corporation Felins Meat Packing Fels & Company Fels Soap Company Fidelity Bank Building Fidelity Insurance Trust & Safety Deposit Co. Fidelity Mutual Life Insurance Co. Firestone Tire and Rubber Co. First National Bank First Pennsylvania Banking & Trust Fitzsimmons Junior High School Food Distribution Center Food Fair Stores For Scrap Forrest Laundry Fort Miffin- Naval Ammunition Depot Fort Miffin- Central Heating Plant Fox Run Apartments Francis Brothers & Jellett, Inc. Francisco Sugar Co. Frank Ford Frank Romano Frankford Arsenal Frankford Hospital Frankford Junction Frankford Metal Treating Frankford Plan Franklin Mint Franklin Motel Franklin Smelting & Refining Franklin Sugar Refining Co. Freight Pitcalm Pittsburgh Freihofer Vienna Baking Co. G. Garrett & Sons G.K. Garrett Company G.W. Allen Company G.W. Childs Public Ledger Building GAF Corporation Gair Box Galveston Garrick Theater Geare-Marston, Inc. General Dynamic Corporation General Electric Co. General Engineering Works, Inc. General Refr Corp General Smelting & Refining Co. General Textile Mills Gene's Garage Geo. Sall Metals George A. Fuller Contracting Co. George A. Smith and Co. George F. Uber Co. George M. Newhall Engineering Co. George S. Harris & Sons George Sall Metals Co. George V. Cresson Gerard Trust Building German Hospital Germantown Germantown District High School Germantown Hospital Germantown Jewish Center Germantown Junction Germantown YMCA Gherardi Gibson and Sons, Inc. Gimbels Store Girard College Girard Estate Peoples Bank Girard Point Girard Refinery Girard Trust Co. Girls Normal School Glen Willow Ice Manufacturing Co. Globe Automatic Sprinkler System Globe Automatic Sprinkler System Globe Dye Works Co. Globe Rubber Co. GLP Company Goldsmith Building Goldsteins & Sons, Inc. Grand Insulation Gratz & Gillespie School Grays Ferry Road and Carpenter Street Green Spring Co. Greyhound Bus Terminal Grocer's Sugar House Grover Cleveland Public School Guam Gulf (Chevron) Refinery Gulf Oil H A Diffenbach H. Daroff and Sons H.C. Price Co. H.D. Justi Division H.K. Drimming Tradesman Grain Elevator & Storage Co. H.L. Edwards and Co. H.W. Butterworth and Sons Hafleigh And Co. Hahnemann Hospital Hajoca Building Hale Building Hall and Garrison Hardesty Industries Hardware & Industrial Tool Hardwich and Magee Co. Harrisburg Station Harrison Brothers Harrison Building Harrison, Frazier & Co. Harrison, Havemeyer & Co. Heintz Manufacturing Co. Helfenstein, Lewis and Green Henderson Sugar Refinery Hercules Powder Co. Herman Goldner Co. Hestonville Mantua & Fairmont Passenger Railroad Co. Holiday Inn Holy Redeemer Hospital Hood, Bonbright and Co. Hopkinson House Apartments Hotel Lafayette House of Correction House of the Good Shepherd Howard Reed Hughes and Patterson Hunting Park Avenue Plant Hutchinson Street Station HV Charles Company Hydro-Blast Corporation Hygeia Ice Company Hygrade Food Products Hyman Brodsky & Son I.T.E. Circuit Breaker Co. IBM Building Immaculate Conception Cathedral Imperial Type Metals Independence Hall Independent Manufacturing Co. Industrial Air Conditioning Industrial Cold Storage and Warehouse Co. Industrial Valley Bank Inland Cotnainer Corporation Inolex Chemical Internal Revenue Service Building International Shoe Co. Interstate Railways Co. Isimbel Brothers Stable ITE Circuit Breaker Co. IVB Buidling J B Kelly Construction J. And W. Yewdall J. Fred Talbott J. Mundell and Co. J.A. Dougherty's Sons J.B. Ellison and Sons J.B. Lippincott Building J.C. Graham and Co. J.C. Grover & Sons J. C. Klauder Estate J.D. Grover & Sons J.D. Morrissey, Inc. J.E. Potter and Co. J.F. Betz and Sons J.F. Buchanan and Co. J.G. Brill Co. J.H. Michener and Co. J.J. De Kinder J.K. Wright and Co. J.S. And T. Elkinton J.T. Bennett Co. J.W. Ivory Co. James Martin and Co. James P Wood Heating Co. Janney Cylinder Jefferson Hospital Jefferson Medical College Jenny Cylinder Jesse W. Starr Jr. Jetronic Industries Jewish Home for the Aged Jewish Hospital JNO. A. Rigg Joel J. Bailey and Co. John B. Kelly Construction John B. Stetson Co. John Bartram Senior High School John Bistelson Co. John Bromley and Sons John Cohen Clothes John David Co. John Lang Paper Co. John Moffet Elementary School John Mundell and Co. John Potero Co. John Wanamaker Department Store John Yewdall Keystone Mills John Zimmermann and Sons Jonathan Ring and Son Jones & Laughlin Steel Jones Junior High School Joseph Berliner Co. Joseph R. Foster Sons Justi Division W. Gold Ref. Kane School Keasbey and Mattison Keebler Biscuits Co. Keenan Company Kelly and Ludwig Keystone Construction Co. Keystone Drydock Kibbe, Chaffie and Co. Kingan and Company, Limited Knoblit Kolnile Brewing Company Koppers Korvettes Shopping Center L & R Construction L. Goldstein's & Sons, Inc. L. Winterer L.A. Riley and Co. L.H. Parke Company L. Laveson and Son La Brum School Laddie Boy Dog Food Co. Lafayette Hotel Land Title and Trust Co. Lankenau Hospital Lavino Shipping Co. League Island Leamy Home Mount Airy Lehigh and Wilkes Barre Coal Co. Lehigh Coal and Navigation Co. Lehigh Manufacturing Co. Lehigh Material Co. Lehigh Valley Coal Co. Leidy School Leston Company Lewis Elkin Elementary Lewis S. Cox and Co. Liberty Bell Race Track Liggett and Myers Tobacco Co. Lincoln Liberty Building Lindner Shoe Co. Link Belt Engineering Co. Liquid Carbonic Corporation Little Rock Long Publishing Co. Longstreth Elementary School Loos & Dilworth Loren's Heat Treating Lorenz & Sons Lorenz heat Treating Louis B. Orlowitz Plumbing Supply Lovekin Trageser Div Lovekin Water Heater Co. Ludlow Elementary School Lupton Manufacturing Co. M Schnoll & Sons M. And W.H. Nixon M.L. Bayard and Co. Machold and Riddell Mack Warehouse Majestic Apartment House Mall Office Building Manayunk Manganese Steel Forge Co. Marcal Paper Mills, Inc. Marck Sharp & Dohme Inc, H.K. Mulford Plant Marietta Metal Products Corporation Marks Brothers Marshall Brothers and Co. Martin and W.H. Nixon Martin Luther King Junior School Martin Luther King School Maryland Coal Co. Maryland Steel Co. Masland Duraleather Co. Masonry Construction Co. Max and Levy Building Max Brockton Textile Co. McClaskey & Co. McCullough Iron Co. McDaniel and Harvery McArdle & Cooney Inc. McCahan Sugar Co. McCloskey Construction McCloskey Varnish Co. McCracken Stark and Co. McKean, Newhall, and Borie McLaughlin Brothers Mechanical Insulation Co. Medical College of Pennsylvania School Medium Voltage Swgr. Department Mens House of Detention Mercy-Douglass Hospital Metropolitan Edison Co. Metropolitan Hospital Michael Flynn Manufacturing Midvale Co. Midvale Heppenstall Co. Midvale Steel Co. Midvalley Coal Co. Millbourne Mills Mine Safety Appliance Co. Minnepolis Honeywell Reg. Co. Mira Bell, Inc. Mitchell, Fletcher and Co. Mobil Oil Co. Moe & Co A Mohawk Valley Brewing Co. Monsanto Chemical Co. Monsey Products Co. Moore College or Art Morgenthaler Brothers Morgenthaler Ice Manufacturing Co. Moro Phillips Morris School Moss Rehabilitation Hospital Mother of Divine Grace Mount Morich Mount Sinai Hospital Mount St. Joseph Academy Mrs Paul's Frozen Foods Muhlenberg High School Mulligan Harold B Municipal Hospital Municipal Services Building Mutual Chemical Division of Allied Chemical & Dye Mutual Rendering Co. N. And G. Taylor Co. N. Snellenburg and Company N.R.S. Yewdall Nabisco Nathan R. Yewdall National Airoil Burner Co. National Biscuit Co. National Crucible Co. National Heat & Power National Lead Co. National Molasses National Sugar Refinery Co. National Tube Co. Naval Air Station Naval Aviation Supply Depot Naval Boiler and Turbine Laboratory School Naval Dry Dock Naval Ship Engineering Center Nazareth Hosptial Neatsfoot Oil Refineries Nelson Valve Co. Nesbitt Manufacturing Co. New Federal Office Building New Jersey mills New River and Pocahontas Consolidated Coal Co. New York Philadelphia and Norfolk Railway Co. New York Shipbuilding Co. Newman & Co. Inc. Nice Ball Bearing Co. Nicetown Station Nicholson File Co. Niles Building Niles-Bement-Pond Company Noah Barlow North American Lace Co. North Brothers Manufacturing Co. North Reserve Basin Nutrition Products O.F. Zurn Oak Summit Apartments O'Brien Machinery Co. Ocen Coal Co. Olney High School Onderdonk Heating and Ventilating Co. Orinoka Mills Oscar Meyer Meats Overbroock Steam Heat Co. Owen-Corning Fiberglass Corporation P.H. Berman & Sons P.J. Ritter Co. PA Forge Div of Chertron Corporation Packard Building Pacor Inc. Paper Manufacturing Co. Peckerman Co. PECO Energy Co. Peerless Dye Co. Pencoyd Iron Works Penn Bradford Co. Penn Center Penn Fishing Penn Fruit Co. Penn Range Co. Penn Sheraton Hotel Penn Steel Co. Penn Treaty American Corporation Penn-Bradford Appl. Pennsalt Chemical Co. Pennsylvania Academy of the Fine Arts Pennsylvania Central Railroad Pennsylvania Fruit Pennsylvania General Imp. Co. Pennsylvania Hospital Pennsylvania Institute for the Instruction of the Blind Pennsylvania Manufacturing, Light and Power Co. Pennsylvania Mutual Building Pennsylvania Mutual Insurance Co. Pennsylvania Railroad Co. Pennsylvania Railroad Office Pennsylvania Range Boiler Pennsylvania Smelting & Refining Co. Pennsylvania Steel Co. Pennsylvania Sugar Co. People Traction Co. Peoples Construction Pep Boys Perlstein Glass Co. PGW Philadelphia and Reading Coal and Iron Co. Philadelphia and Reading Railway Philadelphia Aquatic Club Philadelphia Asbestos Co. Philadelphia Bank Building Philadelphia Brewing Co. Philadelphia City Hall Annex Philadelphia Coke Co. Philadelphia College of Pharmacy Philadelphia Convention Hall Philadelphia County Prison Philadelphia Dry Yeast Philadelphia Dye Works Philadelphia Electric Co. Philadelphia Engineering Co. Philadelphia Exposition Philadelphia Fire Dept. Philadelphia General Hosptial Philadelphia Inquirer Philadelphia International Airport Philadelphia Iron Works Philadelphia Museum Philadelphia Navy Shipyard Philadelphia Quartz Co. Philadelphia Resin Co. Philadelphia School District Philadelphia Steam Heating Co. Philadelphia Tapestry Mills Philadelphia Traction Co. Philadelphia Zoo Phillip Carey Manufacturing Co. Pickett Middle School Pilot Plant Division Pittsburg Plate Glass Co. Plaza Apartments Point Breeze Refinery Pollock School Porter Co A K Potomac Water Treatment & Power Plant Potter Sons & Co. Powelton Electric Co. Powelton Gardens Powers Weightman Rosengarten Co. Precision Grinding Co. Presbyterian Home for Widows and Single Women Presbyterian Hospital Prison- Men's House of Detention Progressive Manufacturing Co. Publicker Industries, Distillers Quaker Boiler Repairing Co. Quaker City Chocolate Co. Quaker City Dye Works Quaker City Iron Works Quaker Export Packaging Co., Inc. R. Hecksher and Sons R.A. Duckworth, P.G.H. Steamline R.C. Remmey Division R.D. Wood Building Reading Railroad Co. Red Lion Plant Reed Electric Co. Reider Brothers Remmey Refractory Richardson Paint Co. Richmond Power Plant Richmond Station Rico Realty Co. Riggs Distler Riley Stoker Corporation Rittenhouse Apartments Rittenhouse Plaza Ritz Carlton Hotel Riverview Home for the Aged Robinson and Wallace Rohn & Haas Chemical Co. Rorborough Chestnut Hill and Morristown Railway Co. Roxborough Memorial Hospital Russian American Manufacturing Co. S M S Automotive S.K.F. Industries Saint Agnes Hospital Sall Geo Metals Co. Samaritan Hospital Savage Arms Corporation Schaefer Brewery Schutte and Koerting Co. Schuylkill Forge Co. Schuylkill Valley Traction Co. Scofield Engineering Co. Scofield, Mason and Co. Scott Paper Co. Sears, Roebuck and Company Septa Sharpless and Sons Shelbe and Fisher, Fairmount Fork Works Shwartz Paper Mill Simon Gratz High School Simonin Oil Co. Sinclair Refining Co. Sisters of the Good Shepherd SKF Ball Bearing Smith Brothers Iron Works Social Security Building Southmark Mills Co. Southwark Foundry and Machine Co. Spector Freight System Spectrum Spreckels Sugar Refining Co. St. Paul's Church Staley Starch Standard Ice Manufacturing Co. Standard Oil Co. Standard Steel Works Co. Starr Stores Warehouse Steele Elementary School Stevenson Terrace Apartments Stone Container Corporation Stawbridge & Clothier Sulzberger Junior High Summerdale Dye & Finishing Inc. Summit Park Apartments Sun Oil Co. Sun Shipbuilding and Drydock Co. Sunoco Chemical Inc. Surpass Leather Co. Swing and Bateman T.C. Roberts and Co. Talbot Talco Metal Products Co. Tasty Baking Co., Inc. Taws and Hartman Temple Hospital Temple University Tetsner Dyeing Co. The American Pulley Co. The Budd Co. The Philip Carey Manufacturing Corp. Thomas Dolan and Co. Thomas Jefferson Hospital Thomas May Pierce School Tilden Junior High Trade & Convention Center Trailmobile Manufacturing co. Trent Incorporated Tru Knit Industries Turner and Serrel Tyler School of Fine Art U.S. Army U.S. Dept of Agriculture U.S. Navy U.S. Government Supply Depot U.S. Naval Shipyard Union League Club Union Paving Co. Union Traction Co. Uniroyal Rubber Co. United Container Corporation United Electric Company of America United Gas Improvement Co. United States Mint United States Naval Hospital Universal Dye works Universal Insulation Co. University City High School University of Pennsylvania University of Pennsylvania Hospital US Courthouse and Office Building US Electric Illuminating Co. Vandergrift Construction Co. Vare Junior High School Vernon Textile Co. Veterans Hospital Vick Manufacturing Division Victor Barward Industries W.C. Hamilton and Sons W.G. Pennypacker W.H. Piper and Co. W.J. McCahan Sugar Refining and Molasses Co. W.P.O. Railroad Warden, Frew and Co. Wark Army Supply Weatherspoong Building Webster Coal and Coke Co. Webster Furnace Weightman Building Weinberg Louis and Marion Wessell Hardware Corporation West End Heating and Energy Co. West Park Hospital West Philadelphia City High School Western Metal Bed Co. Westinghouse Cars and Co. Westinghouse Electric & Manufacturing Co. Whitman Chocolate Wiegner Smelting Co. William Armstrong and Sons William L. Sayre Junior High School William Penn High School William Steele Sons Co. William Whitaker and Sons Wilson Martin Co. Wishart Theater Wolf Building Co. Women's Medical College Hospital Wright Brothers and Co. Wyeth Labs Yewdall and Jones Brothers YMCA Zabel Brothers Co., Inc. Zinman Furs
Philipsburg C.H. Rowland Penn Public Service Co.
Phillips Mine H.C. Frick Coke Co.
Phoenixville Arthur C. Mangels Ind. Borough of Phoenixville Charles Lachman Co., Inc. (aka Mohawk Carpet Mills) Exelon Generation Co. Exelon Power Mc Avey Brick Co. PECO Cromby Station Philadelphia Electric Co. Philadelphia Protectory for Boys Phoenix Iron Co. Phoenix Steel Corporation Phoenixville Hospital Phoenixville Incinerator Phoenixville Steel Valley Forge Hospital
Pickville Dolph Coal Co.
Pine Grove East Pennsylvania Electric Co. Pennsylvania Power & Light Co. Phoenix Utility Co. Pine Grove S.E. Station
Pitcairn Backos & Johns Lumberyard Pennsylvania Railroad Co.
Pittsburgh A. & S. Wilson Co. A. French Spring Co. A. Garrison Foundry Co. A.M. Byers Co., Inc. A.W. Cadman Manufacturing Acands, inc. Aiken Medical Building Airforce Base Air Products, Inc. Alcoa Building Alcoa Research Labs Alexander Plumbing Co. Aliquippa Steel Co. Allegheny Airport, Pittsburgh Airport Allegheny County Home for Destitute Allegheny County Light Co. Allegheny County Steam Heating Co. Allegheny County Workhouse Allegheny General Hospital Allegheny Valley Street Railway Co. Alpha Portland Cement Co. Aluminum Company of America American Bridge Co. American Coke Co. American Radiator and Standard Sanitary Corp. American S. & W. Co. American Sheet & Tin Plate Co. American Sheet Steel Co. American Steel and Wire Co. American Steel Hoop Co. American Warming & Ventilating Co. American Water Works & Electric Co. Annex Hotel Co. Anselm School Antioch Building Apollo Iron & Steel Co Arbuckle and Co. Arbuckle, Ryan & Company, Inc. Armco Armstrong Sanitary Wipers Ashland Chemical Co. Asphalt Plant Asphalt Products Atec Building Atlantic Baking Group, Inc Atlantic Refining Co. Atomic Power Station August Wagner Breweries, Inc. B. & W. Main Tube Plant Bailey High School Baker, Smith & Co. Baltimore and Ohio Railroad Co. Becks Run Station Bell Telephone Co. Bellefield Boiler Plant Bellefield Hotel Bessemer Coke Co. Bethel Senior High School Bethlehem Steel Mill Bindley Hardware Co. Bissell And Co. Blaw-Knox Co. Board of Education Bollinger Brothers Boston & Ohio Railroad Co. Braddock Hospital - Warehouse Braddock Wire Co. Bradshaw and Co. Brown and Co., Inc. Brunots Island Brunot's Island Powerhouse Bureau of Mines C. Howard Mercy State Hospital C.V. Comstock C.H. Bradley and Co. Cametoo Co. Cannonsburg Iron and Steel Co. Carbon Steel Co. Carnegie Brothers and Co. Limited Carnegie Illinois Steel Corporation Carnegie Institute of Technology, Hameraschlag Hall Carnegie Library Extension Carnegie Mellon University Carnegie Natural Gas Co. Carnegie Phipps and Company Limited Carnegie Sheet Co. Carnegie Steel Co. Carnegie Technical Schools Carrie Furnace Co. Carson Industrial Development Corporation Central District and Printing Telegraph Co. Central Land Co. Central Power Plant Chamber of Commerce Building Charleroi Construction Co. Charleroi Plate Glass Co. Chartiers Valley High School Chartiers Valley School District Chatham Center Chem-Clay Corp. Chicago Pneumatic Tool Co. Children's Hospital Christ M.E. Church City of Pittsburgh Brilliant Pumping Station City of Pittsburgh Mayview Plant Civic Arena Clarion Steel Works Clinton G. Hodder Clinton Iron and Steel Co. Coal and Coke By-Products Co. Colonial Steel Co. Colt Industries Commercial Gazette Building Commonwealth Trust Co. Conemaugh Station Unit 1 Consolidated Gas Supply Corp. Consolidated Ice Co. Consolidated Steel & Wire Co. Consolidated Traction Co. Convent of Mercy Corning Glass Plant Coronada Apartments Crane Supply Co. Crescent Forgings Co. Crescent Works Crucible Steel Company of America D.R. Lane Dally Engineering Valve C Delaware and Magnetic Springs Railway Co. Department of the Interior, Bureau of Mines Des Moines Steel Diamond Alkali Co. Diamond National Bank Building Dietz Trucking Co. Dilworth Porter and Co., Limited Dispatch Publishing Co. Downtown Station Dravo Contracting Co. Dravo Corporation Dravo Doyle Co. Dravo Shipbuilding Duff Manufacturing Co. Duff-Norton Manufacturing Co. Duquesne Brewing Co. Duquesne Club Duquesne Forge Co. Duquesne Ice Co. Duquesne Light Co. E.I. Weigland E.M. And W. Ferguson E.N. Hyde Heating Co. E.W. Bliss East End Electric Light Co. East Liberty East Liberty Home Dressed Meat Co. East Liberty Market Eastern Mercy Health Systems Economy Sauer Chatham Center Edgewater Corp. Edgewater Steel Co. Eliza Furnace Plant Elizabeth Steet Magee Hospital Ellis School Elrama Power Plant Empire Building Empire Reeves Steel Corp. Engr Annex Equipment Engineering Co. Equitable Gas Energy Co. Equitable Gas Steam Heating Co. Equitable Life Assurance Society Gateway Center Es Magee Hospital Esso Standard Oil Co. Estate of H.W. Oliver F B Wright Co. F. Miller Spring & Manufacturing Co. F.F. Geisler and Co. F.R. Dravo and Co. Farmers Deposit National Bank Building Federal Office Building Ferrows Chemical Co. First National Bank Building Follansbee Brothers Co. Ford Motor Co. Fort Pitt Hotel Fort Pitt Supply Co. Four States Coal Coke Co. Frank Kneeland Machine Co. Frick Building Ft. Pitt Hotel Garland Brotheres Gateway Center Building GEM Manufacturing Co. General Chemcial Company of Pennsylvania General Electric Co. General Motors Corporation George Westinghouse Jr. Glenwood Station Goodyear Grant Station Great Lakes Steel Greater Pittsburgh Airport Gulf Oil Corporation Gulf Refining Co. Gulf Research and Development Co. H.H. Heinz Lab. H. Koppers Co. H.C. Frick Coke Co. H.H. Curry Co. H.H. Robertson Co. H.J. Heinz and Co. H.K. Porter Co. H.R. Curry Co, Inc. H.W. Oliver Central Power Plant Hainsworth Steel Co. Happenstall Co. Harbison Walker Refractories Co. Harry Roman Hays Army Depot Hazelwood Byproducts Hazelwood Plt Batt #2 Hazelwood Works Heeren Brothers and Co. Heinz U.S.A Henry Phipps Central Power Plant Heppnstall Forge and Knife Co. Heppenstall of Pittsburgh Herris Island Heyl and Patterson Highland Brewing Co. Hinckliffe Keener Homeopathic Hospital Homestead Steel Works Hope Natural Gas Co. Howe, Brown & Company Hubbard Tool Division Hughes and Gauthorp Co. Hugus and Hacke Hussey Building IBM Office Building Illinois Steel Co. Illinois Zinc Co. Independent Brewing Company of Pittsburgh Independent Bridge Co. Industrial Div. Warehouse Ingersoll Rand Co. Inland Products, inc. Iron City Heating Co. Iron City Imp. Co. Iroquois Apartments Island Petroleum Co, Neville Island J&L Steel J.C. Mcdowell J.J. Vandergrift J.W. Arrott James H. Reed Power Station James Irwin and Co. James L. Stuart James Reed Power Station Jamison Coal and Coke Co. Jas. Bonar and Co. JNO. F. Wilcox John Dimling John J Kane Hospital (McCandless TWP) Johns Manville Jones & Laughlin Steel Co. Joseph Horne and Co. Joseph S. Finch Co. JSTA. #30 - S.S. Boiler House Karl R.H. Knapp, Inc. Kaufman Building Kaufmans Department Store Kelly and Jones Co. Keystone Brewers, Inc. Keystone Engineering Co. Kittanning Brick and Fire Clay Co. Koppers Co. L.H. Prentice Co. Leader Publishing Leamington School Lectromelt Leopold Vilsack Lewis Block Lewis Foundry and machine Co. Lexington Mead Corp. Liberty Manufacturing Co. Liberty Market Co. Limbach Co. Linde Air Products Co. Liquid Carbonic Acid Manufacturing Co. Little Sisters of the Poor Loose Wiles Biscuit Co. LTV Steel Lucy Furnaces M & G Industrial M Miller Spring & Manufacturing Co. M.H. Pickering Mackintosh-Hemphill Co. Magee Womens Hospital Maginn and Lewis Mahoning Valley Iron Co. Manchester Station Marquette Cement Manufacturing Co. Marshall Kennedy Co. Marshalsea Four Arm Mc Conway & Torley Corp. McCandless TWP McCann Shields Paint Co. McGraw Edison Co McGuinnes Co. Mellon Arena Mellon Bank, Old USS Building Mellon Institute of Industrial Research Mercy Hospital Mesta Machine Co. Michigan Chemical Co. Midland-Ross Corp. Mine Safety Appliance Co. Minotte Brothers Co. Mobay Chemical Co. Monahan Insulation Co. Monongahela Connecting Railroad Co. Monongahela Incline Plane Co. Monongahela Light and Power Co. Monongahela Natural Gas Co. Monongahela River Consolidated Coal and Coke Co. Monongahela Street Railway Co. Monongahela & Ohio Dredging Co. Montefoire Hospital Moorehead Brothers and Co. N.S. National Biscuit Co. National Casket Co., Inc. National Galvanizing Co. National Lead Co. National Mining Co. National Steel Co. National Supply National Tube Co. Neville Chemical Co. Neville Island Coke & Chemical Neville St. Apartments New Castle Station New Duquesne Science Hall New Federal Building New York Wilkins Company Engineers Nickel Plumbing & Heating Nixon Theatre North American Construction Co. North Cambria Railway Co. North Side Packing Co. Northview Heights Elementary School Northview Houseing, Hazlet and Spring Hill Nuttal Works Ohio and Pittsburgh Milk Co. Old Fourth Ward School Old Meadow Works Oliver and Roberts Wire Co. Oliver and Snyder Steel Co. Oliver Building Oliver Iron and Steel Co. Oliver Iron Mining Co. Oliver Wire Co., Limited Olson Engineering Oswald & Hess Co., Inc. P. McGraw Wool Co. P.F. Magin and Co. Papercraft Plant Park Steel Co. Park Steel Works Park Works Parkersburg Iron and Steel Co. Passavant Hosptial Paul Lumber and Supply Co. Pearson Manufacturing Co., Inc. Penn Mo Firebrick Co. Penn Township Junior High School Pennsylvania Chocolate Co. Pennsylvania Co. Pennsylvania General Electric Co. Pennsylvania Lubricating Co. Pennsylvania Malleable Co. Pennsylvania Power & Light, Turbine Pennsylvania Railroad Co. Pennsylvania State Park - Racoon State Park Pennsylvania Tube Co. Pennzoil Co. Peoples Bank Building Peoples Land Co. Peoples Savings & Trust Building Peter F. Loftus Phoenix Glass Co. Pitt Comm Heat Treating Pitt-Fab Pittsburgh Commercial Heating Pittsburgh Thermal Limited Partnership Pittsburgh and West End Electric Railway Co. Pittsburgh Coal Co. Pittsburgh Construction and Engineering Co. Pittsburgh Crankshaft Service Pittsburgh McKeesport and Connellsville Railroad Pittsburg Plate Glass Co. Pittsburgh Shear Knife and Machine Co. Pittsburgh Activated Carbon Co. Pittsburg Airport Pittsburgh and Birmingham Traction Co. Pittsburgh and Conneaut Dock Co. Pittsburgh and Lake Erie Railroad Co. Pittsburgh and West End Passenger Railway Co. Pittsburgh Athletic Association Pittsburgh Brewing Co. Pittsburgh Buffalo Co. Pittsburgh Coal Co. Pittsburgh Coke & Iron Co. Pittsburgh Commercial Pittsburgh Forge and Iron Co. Pittsburgh Gas and Coke Co. Pittsburgh Gear Co Pittsburgh Heat Pittsburgh Housing Authority, Terrace Village Pittsburgh Iron and Steel Engineering Co. Pittsburgh Lake Erie Railroad Depot Pittsburgh Mechanical Systems Inc. Pittsburgh Metal Proc. Pittsburgh Milling Co.. Pittsburgh Powerhouse Pittsburgh Press Pittsburgh Provision and Packing Co. Pittsburgh Railways Pittsburgh Reduction Co. Pittsburgh Screw & Bolt Co. Pittsburgh Steamship Co. Pittsburg Steel Co. Pittsburgh Steel Foundry Pittsburgh Terminal Warehouse and Transfer Co. Pittsburgh Theological Seminary Pittsburgh Thermal Pittsburgh University Pittsburgh Valve and Fitting Co. Pittsburgh Valve Foundry & Construction Co. Pittsburgh Wire Co. Pittsburgh Works Pittsburgh, Cincinnati, Chicago and St. Louis Railroad Plant Asbestos Co. PNB Building Pope Tin Plate Co. Porter Building Power Piping PPG Industries Pressed Steel Car Co. Purchasing Department - 3 Gateway Center R.B. Murray Oakland Arcade Co. Railway Spring and Manufacturing Co. Rankin Station Reiners Reisinger Prather Co. Rennepamp Supply Co. Republic Iron and Steel Co. Republic Iron Works Republic Steel Research Div. - Pilot Plant- Station 73 Rieck Mcjunkin Dairy Co. Riter Conley Manufacturing Co. Rittman Process Corporation Robinson and Rea Manufacturing Co. Robinson Protected Metal Co. - Ceiling Rojac Industries Roosevelt Hotel Rosedale Foundry and Machine Co. Rossiter, McGovern & Co. Rozman Russian American Manufacturing Co. S. Ewart and Co. S.S. Marvin Branch Salk Hall - University of Pittsburgh Schoen Pressed Steel Co. Sears, Roebuck & Co. Second National Bank Sharon Coke Co. Sharon Steel Hoop Co. Shelby Steel Tube Co. Shenango Steel Shenango, Inc. Sherwin Hotel Shoenberger Steel Co. Shoenberger Works Shook Anderson Manufacturing Co. Singer-Nimick Works Smithfield ST. Terminal South Hills High School South Pittsburgh Water Co. South Pittsburgh Water Works South Ride South Side Hospital South Side Plant Southern Natural Gas Co. Southern Traction Co. Southside Works Spang & Co. Spang Chalfant & Co., Inc. Spang Steel and Iron Co. SS Boiler House Station #30 St. Bernard's Roman Catholic Church St. Francis Hospital St. James Activity Building St. Johns General Hospital St. Louis Plate Glass Co. St. Margaret's Hospital St. Nicholas Building Standard Floor Co. Standard Life Insurance Building Standard Steel Car Co. Standard Underground Cable Co. Stanwix Heating Plant Star Fire Brick Co. Straub Brewing Suburban Rapid Transit Street Railway Co. Swindell-Dressler Co. Tate Jones and Co., Inc. Tech Food Products Co. The Federal Buidling Thompson & Sons Tri River Building Products Inc. Truck Station 70 - Welshman B P Plant Tuberculosis Hospital Turtle Creek Valley Water Co. Tyson Metal Products US Steel Corp. U.S. Army Reserve Center U.S. Bureau of Mines U.S. Hoffman Machinery Corp. U.S. Steel Chemical Plant US Steel Corporation Union Electric Co. Union Ice Co. Union Spring Manufacturing Co. Union Station Union Steel Casting Union Steel Co. Unit Rail Anchor Corp. United Engineering & Foundry Co. United State Aluminum of America United States Coal and Coke Co. United States Dept. of Commerce, Bureau of Mines, Experimental Station United Traction Co. Universal Atlas Cement Universal Cyclops Corporation University of Pittsburgh University Square Condominiums US Steel, USX USS Headquarters USX Corporation USX Irving Works USX Steel Mill USX Steel, Clairton Works V.C. Golden Vesta Coal Co. Vesuvius Crucible Co. Veterans Administration Hospital Veterans Hospital W. Dewees Wood Co. W.G. Balph Co. W. Glyde wilkins Co. W.W. Darley Wabash Pittsburgh Terminal Water Works Construction Co. and Eastern Tube Co. Wayne Iron Works Weeks Brothers West Liberty School West Penn Hospital West Penn Power Co. West Pennsylvania Hospital Western State Psychiatric Hospital Westinghouse Air Brake Co. Westinghouse Electric & Manufacturing Co. Wilkinsburg and Eat Pittsburgh Railroad William Miller and Sons Co. William Penn Hotel Wilson-Snyder Centrifugal Pump Co. Winter Brewery Zug and Co., Limited Zug Iron and Steel Co.
Pittston Alpine Knitting Mills Barnum Breaker Barnum Colliery Buler Colliery Citizens Electric Illuminating Co. Clear Spring Coal Co. Ewen Breaker Exeter Colliery Exeter Machine Works Exeter Power Co. Girard Coal Co. Hillside Coal and Iron Co. J.E. Patterson and Co. Jermyn and Co. Lehigh Valley Coal Co. Newton Coal Mining Co. Owens-Illinois Glass Co. Pennsylvania Coal Co. Scranton Electric Co. Seneca Colliery
Plainfield Hibbard-Rodman-Ely Safe Co.
Plains Junction Pennsylvania Coal Co.
Plumcreek Pennsylvania Electric - Keystone Generating Station
Plymouth Consumers Light Co. Delaware, Lackawanna and Western Railroad Co. Dodson Mines, Plymouth Coal Co. Gaylord Colliery Glen Alden Coal Co. Lance Colliery #11 Lehigh and Wilkes Barre Coal Co. Luzerne Coutny Gas and Electric Co. Nottingham Colliery Philliip Carey Truesdale Colliery
Plymouth Junction Delaware and Hudson Co. Lance Colliery #11 Plymouth #5 Washery
Plymouth Meeting American Magnesia and Covering Co. Carey Manufacturing Dorchester Apartments E.J. Lavino & Co. Mechanical Insulation Co. Philip Carey Manfuacturing Co. Willowbrook #3
Point Breeze Arco (Atlantic Richfield Co.) Atlantic Refining Co. Belmont Refinery
Point Marion Ft. Marion Power Station Point Marion Powerhouse Uniontown Demolition
Poland Valley Camp Coal co.
Polk State Institution
Ponca City Oklahoma Gas & Electric
Port Allegany Pieroe Glass Co. Pittsburgh Corning Corp.
Port Carbon Chamberlain Coal Co. Coxe Traveling Grate Co. Eagle Hill Colliery
Port Kennedy Asbestos & Magnesia Manufacturing Co. Baldwin-Ehert-Hill Inc. Combustion Engineering, Inc. Ehret Magnesia Manufacturing Co. Montgomery Iron Co. Pittsburgh Plate Glass Co. Refractory & Insulation Plant
Port Wentworth Southern Nitrogen Co.
Portage Lovell Coal Mining Co. Portage Coal Mining Co. Slofee Mine Sonman Shaft Coal Co.
Portland Metropolitan Edison Co- Portland Generating Station Metropolitan Edison Power Plant
Portsmouth White Mountain Paper Co.
Possum Glory Garman Mills Station
Pottstown A T & T Bell Telephone Berks Refining Co. Doehler Jarvis Division, National Lead Industries, Inc. Firestone Tire and Rubber Co. Flagg, Stanley G. & Co. Glasgow Iron Co. Masonic Temple McClintic-Marshall Construction Co. Occidental Chemical Pottsgrove School Pottstown Hospital Pottstown Iron Co. Pottstown Plant Robinson Clay Products Co. Spicer Manufacturing Co. Stanley G Flagg and Co. The Hill School Warwick Iron & Steel Co. YMCA
Pottsville Albright Coal co. Chamberlain Coal Co. Eastern Pennsylvania Railways Co. Eastern Steel Co. Harleigh Brookwood Coal Co. Marsden T J Co. Milliken Hospital Boiler Room Pennsylvania Railroad Co. Philadelphia and Reading Coal and Iron Co. Philadelphia Reading Corporation Pottsville Area Middle School Pottsville Hospital Pottsville Iron and Steel Co. Pottsville Water Co.
Primos Crucible Steel Co.
Primrose Lytle Coal Co. Providence Delaware and Hudson Co.
Pullman Pullman Co.
Punxsutawney Anita Coal Mining Co. Cowanshannock Coal and Coke Co. Frank Roberts & Sons Inc Hoffman Bros Indiana Couty Railways Co. Jefferson & Clearfield Coal & Iron Co. Pittsburgh Gas Coal Co. Punxsutawney Elementary School Punxsutawney Hardware Punxsutawney Iron Co. Punxsutawney Secondary School Rochester and Pittsburgh Coal and Iron Co.
Quakertown American Olean Tile Co. Borough of Quakertown Quakertown Brick & Tile Co Quakertown Chrysler Plymouth Quakertown Electric Department Quakertown Tractor Co. Rittenhouse C & Son Tri State Non Ferrous Co. W. J. Lawlor
Quarryville Buck Iron Co. New Senior High School S. Lancaster Co School Authority- New Sr High School
Radnor Altman Store, Lancaster Pk. And Iven Rd. Archbishop Carroll High School
Rankin American Steel & Wire Co. Braddock Wire Co. Carnegie Steel Co. Carnegie-Illinois Steel Corp. Carrie Furnace Co. Consolidated Steel & Wire Co. Duquesne Forge Co. Duquesne Light Co. Monongahela Light and Power Co. Rankin US Steel Carrie Furnace (aka Homestead Works) U.S. Steel Corporation US Steel Wilkinson and East Pittsburgh Street Railway Co.
Ransom National Paper Co. Ransom Hospital
Reading A T & T Co. A. Wilhelm Co. Acme Markets Warehouse Albright College American Chain & Cable Co. Beryllium Corporation Bureau of Water Department of Parks and Public Property Carpenter Steel Co. Cartech Corp. Colonial Berks Real Estate Colonial Trust Co. Conrail (Consolidated Railroad) Consumers Gas Co. Cooperative Power Plant Dana Corporation, Parish Frame Division East Penn Refractories Co. Eastern Industrial Insulation Co. Eisenhower Apartments Federal Paper Board Co, Inc. Frantz Heating & Roof Co. Georgia Pacific Pulp & Paper Gilbert Associates, Inc. Hendel Hat Co. Hopper Paper Co. House of Good Shepherd J.H. Sternbergh and Son John A Rigg Karl Lieberknecht Inc. (aka Rosedale Knitting Mills) Kawecki Berylco Ind. Kawecki Chemical Co. L.J. Land, Inc. Louis Kraemer and Co. Lucent Technologies Metropolitan Edison Co. Orr & Sembower Inc. Parish Pressed Steel (Dana Corp.) Paul B. Hendel & Co. Penn Hardware Co. Penn Optical Pennsylvania Railroad Philadelphia and Reading Railroad Co. Prestolite Battery Reading Hospital Reading Iron Company Reading Iron Works Reading Metals Refining Co. Reading Railroad Reading Rehabilitation Hospital Reading Shale Brick Co. Reading Transport Reading Tube Division Reading Water Works Reading Whitehall Paperboard Rockwell Industries Sears Roebuck Store - Lancaster Pike St. Joseph's Hospital Temple Iron Co. Textile Machine Works The U G I Corporation Titus Station Powerhouse US Army Reserve Center W.H. Luden W.J. Hollis Western Electric Co., Inc. Willson Products Divison Wilson Safety Products Zack Industries
Redington Bethlehem Steel Corp. Eterno Asbestos Lumber and Shingle Co. Redington Standard Fittings Co.
Reedsdale Armstrong Station Reedsdale P.S. West Penn Power Co Armstrong Station
Rencoyd Container Corporation of America
Renfrew Pittsburgh and Butler Street Railway Co. Standard Steel Car Co.
Reno Joy Manufacturing Wolf's Head Oil Refining Co.
Renovo New York State Natural Gas Pennsylvania Railroad Co. Pennsylvania Railroad Shops Renovo Shops Transcontinental Gas Pipe Line Corp.
Republic Republic Coke Works Tower Hill Connellsville Coke Co.
Retreat Central Poor District of Luzerne County Hospital for the Insane
Reynolds Atlas Powder Co.
Rices Landing Mather Collieries
Richmond Philadelphia Electric Co.
Riddlesburg Colonial Iron Co. Kemble Iron Co.
Ridgeway Elliott Company - Accoustical Lab Motion Control YMCA Auditorium Elliot Co. Exotic Metals West Penn Power Co. Weyerhaeuser Co.
Ridley Park Boeing Vertol Co.
Riegelsville Cooper Hewitt Co., Durham Iron Works
Rillton Westmoreland Coal Co.
Rimersburg Rimersburg Junior High School
River Station Pennsylvania Power and Light Co.
Riverside Merck & Company, Inc.
Roaring Springs Appleton Papers, Inc. D.M. Bare Paper Co. L.M. Bare Paper Co.
Robertsdale Rockhill Iron and Coal Co.
Robesonia Robesonia Iron Co., Limited
Rochester Impervious Varnish Co. LTV Steel Rochester General Hospital Rochester Plant Stoner-Mudge
Rockledge Pennsylvania General Imp. Co.
Rohrersville Buck Run Coal Co.
Ronco H.C. Frick Coke Co. Sharon Coke Co.
Rook Pittsburgh and West Virginia Railway Co.
Rosedale West Penn Power Co.
Rosemont Rosemont College
Roulette Allegheny Gas Co.
Rouseville Calumet Lubricants Co. Pennzoil Co. S. Bern Ohio Co. South Penn Oil Co.
Rowes Run Station H.C. Frick Coke Co.
Royersford Newburn Glass Co. Spring-Ford Area High School Wilcox Wilford Corp.
Roystone Pennsylvania Gas Co.
Ruffs Dale Canadian Westinghouse Ltd - Waltz Mills Dillingers Distilleries, Inc.
Rupertown Kawecki Chemical Co.
Rushland Miller Quarries Inc.
Russellton Freedman Wholesale Lumber Co.
Sabinsville Consolidated Gas Sup. Corp. New York State Natural Gas - Sabinsville Compressor Station
Safe Harbor Safe Harbor Water Power Corporation
Sagamore Buffalo & Susquehanna Coal & coke Co.
Saint Marys Airco Speer Carbon Products Carbide Graphite Group, Inc. Speer Carbon Co. Stackpole Carbon
Sandts Eddy Bath Portland Cement Co. Lehigh Portland Cement Co.
Saxonburg U.S. Steel, Sinter Plant#1
Saxton Broad Top Power Co. Penn Central Light and Power Co. Saxton Iron Co.
Sayre R.C.A. Building Robert Packer Hospital Sayre Electric Co.
Scalp Level Berwind White Coal Mining Co. Eureka #30
Schellburg Lormack Corporation
Schendis Ferry Westinghouse Cars and Co.
Schenley Joseph S. Finch and Co. Schenley Distillers Corporation
Schuylkill Haven Borough of Schuylkill Haven Philadelphia and Reading Coal and Iron Co. Philadelphia Electric Co. US Bureau of Mines
Scotland Scotland School for Vets
Scott Haven Pittsburg Coal Co.
Scottdale American Sheet & Tin Plate Co. C.L. Miller Co. Charles A. Briggs Lumber and Manufacturing Co. Duraloy Co. Lincoln Coal & Coke Co. Scottsdale Furnace Co. Scottdale Iron and Steel Co. Scottdale Wood Products Co. United States Pipe and Foundry Co.
Scranton Alamogordo Lumber Co. Allied Services Handicapped Chamberlain Steel Charmin Paper Co. Chicago B & I. Bell Combustion Engineering, Inc. Community Central Energy Corp. Delaware and Hudson Co. Delaware, Lackawanna & Western Railroad Co. Diamond Mines Dickson Mine, Green Ridge Station Dodge Mines Dolph Coal Co. Double Woven Corp. Eureka Specialty Co. G.E. Industrial Tube Plant George H. Walbridge Lackawanna Light Co. George Singleton Glen Alden Coal Co. Green Ridge Coal Co. Hampton Boiler Plant Hampton Mines Hess, Inc. Hudson Coal Co. Hyde Park Gas Co. Industrial Equipment Co. International Service Ind. J.P. Maloney Jaunty Fabric Corp. Januty Silk Co., Inc. Kemmerer Iron and Steel Co. Lackawanna and Wyoming Valley Railway Co. Lackawanna Iron and Coal Co. Lackawanna Iron and Steel Co. Mary Wood College McClair, Brooks and Co. Murray Body Co. Murray Corp. Old Forge Collieries Pascagoula Street Railway and Power Co. Pennsylvania Coal Co. Pennsylvania Power & Light Co. Pennsylvania Utilities Investment Corp. Peoples Coal Co. RCA Sauquoit Silk Co. Schmidt Lumber Millwork Scranton Anthracite Briquette Co. Scranton Axle and Spring Co. Scranton Bolt and Nut Co. Scranton Electric Co. Scranton Gas and Water Co. Scranton High School Scranton Lace Co. Scraton Ordinance Divison Scranton Railway Co. Scranton Technical High School Simpson and Watkins Sisters of the Good Shepherd Spring Brook Water Supply Co. Sterrick Creek Coal Co. Suburban Plant Temple Iron Co. US Hoffman Machinery United Gilsonite Lab. Wallace-Murray Washburn and Zerfass Washington Ave. Plant Webster Coal and Coke Co. West Side School Weston Field
Scully Pittsburgh, Cincinnati, Chicago and St. Louis Railroad
Sebastopol Pennsylvania Coal Co.
Secane Vosters Nurseries
Seiple Trojan Powder Co.
Selinsgrove Central Administration Area- Selinsgrove Center New Recreation Selinsgrove Center School Selingrove Center Selinsgrove Center School Selinsgrove State School Shamokin Dam Susquehanna University - Women's and Men's Dormitories
Sellersville Granview Hospital
Seranton Leonard Brothers Simpson and Watkins Washburn, Williams and Co. West End Coal Co.
Seward Penn Republic Service Corp. Pennsylvania Electric Co. Seward Public Schoo
Sewickley American Industrial Contracting Sewickley Valley Hospital
Shaft NM. Penn Colliery
Shamokin Bear Gap Water Co. Cameron Colliery Edgewood Mill Edison Electric Illuminating Co. Hickory Ridge Colliery Hickory Swamp Colliery J. Langdon & Company, Inc. J.H. and C.K. Eagle Co. Luke Fidler Colliery Mineral Railroad & Mining Co. Pennsylvania Power & Light Co. Shamokin and Coal Township Light, Heat & Power Co. Shamokin Light Heat and Power Co. Shipman Coal Co. Township Light and Power Co. Union Coal Co.
Sharon Allstate Distributors Inc Armco Steel Buhl Steel Co. Carnegie Steel Co. Curtis Publishing House Driggs Seabury Ordnance Co. First Federal Savings & Loan First Presbyterian Church General American Transportation Corp. Grimms Ivor J Lee Co. Ledwig Huntel Co. Medal Distributing Co. National Casting National Malleable National Steel Co. Petroleum Iron Works Savage Arms Corp. Sharon Coke Co. Sharon Iron Co. Sharon Steel Co. Sharon Tube Co. Sharon Water Works Co. Shenango Valley Water Co. Westinghouse Electric Corp. Sharon Tube Westinghouse W Rose Inc.
Sharpsburg Bell Telephone Co. Ft. Pitt Brewing Co. H.R. Curry Moorhead Brothers Pittsburg Metal Process Round House Spang Chalfant & Co., Inc. Z & L Lumber Co.
Sharpsville Claire Furnace Co. Corrigan-Mckenney Steel Co. Mabel Furnace Perkins and Co., Limited Sharpsville Furnace Co. Shenango Furnace Co. Shenango Steel Spearman Iron Co. Valley Mould and Iron Co.
Shawmut Station Roxborough Chestnut Hill and Morristown Railway Co.
Shawville Penelec Power Plant Pennsylvania Electric Co. - Shawville Station Reliant Energy Wholesale Group Susquehanna Power Station
Sheffield Pennsylvania Gas Co.
Shelocta Keystone Power Station Pennsylvania Electric Co. Shelocta Power Station Westinghouse Electric Corp., Keystone Station
Shenandoah William Penn Colliery
Sheridan E.J. Lavino & Co. Pennsylvania Furnace Co.
Shippensburg Shippensburg State College
Shippingport Atomic Power Station Beaver Valley Power Station Bruce Mansfield Power Station Crump, Inc. Duquesne Light Co. First Energy Nuclear Operating Co. Pennsylvania Power & Light Co. Power Atomic Power Station Shippingport Powerhouse - Atomic Plant Western Penn Westinghouse Electric Co.
Shiremanstown Quaker Oats Co. US Steel
Siegfried Dexter Portland Cement Co. Lawrence Cement Co. Silver Brook Coal Co.
Sinking Springs Breading Paperboard Corporation Sinking Spring Foundry Co. Huffman Industries Wilson School District Wilson Senior High School
Slatington Manhattan Slate Co. Slatington Foundry, Mach and Boiler Works
Slippery Rock Slippery Rock State Teachers College Slippery Rock University
Smock Station Colonial #1 Plant
Snyder City Pennsylvania Power & Light Co.
Solesbury Solesbury Elementary School
Somerset State Hospital
Somerton Byberry Farms
Souderton Granite Hosiery Mills
South Monaca Colonial Steel Co.
South Altoona Penn Central Pennsylvania Railroad Co.
South Bethlehem A. Deruy Bethlehem City Water Co. Bethlehem Steel Corporation Booster Boiler House Saucon Plant Lehigh Coke Co. Lehigh University New Jersey Zinc Co. Projectile Plant #2 Army Gun Carriago Shop Saucon
Southampton Alloy Steel
Southfork Southern Cambria Railway Co. J. And L. Southside
Spring City Department of Public Welfare - Pennhurst State School Keystone Drawn Steel Penhurst State Institute Wilcox Wilford Corp.
Spring Grove Black Liquer Oxidation System Dorr Oliver, Inc. Glatfelter Paper Mll P H Glatfelter Co.
Spring House Boiler Service, Inc. Rohm & Haas Chemical Union Paving Co.
Spring Siding Glen Summit
Springdale Allegheny Energy Supply Co. Arden Verner Painting Cheswick Power Station Colfax Station Duquesne Light Co. Pittsburgh Plate Glass Co. Satellite Alloy Corp. Springdale Powerhouse Springdale Station Western Pennsylvania Power Co.
Springfield AT & T Delaware County Central Heating Co. Strawbridge & Clothier
St. Michael Maryland Coal Company of Pennsylvania
St. Nicholas Philadelphia and Reading Coal and Iron Co.
St. Peters E. & G. Brooke Iron Co.
Star Junction Washington Coal and Coke Co.
State College Corning Glass Co. Penn State College - Dormitory Pennsylvania State University Westerly Parkway School
Stauto Lehigh Industrial Power Co.
Stearns Susquehanna Coal Co.
Steelton Bethlehem Steel Co. Pennsylvania Steel Co. Standard Oil United Gas Improvement Co.
Stockertown Hercules Cement Corp.
Stoneboro Franklin Manufacturing Co.
Stoyestown Merchants Coal Co.
Strawberry Ridge Pennsylvania Power & Light Co.
Stroudsburg Design Techniques Martins Creek, P.P.L. Paul W. Anderson Union Metal Manufacturing
Sugar Notch Lehigh and Wilkes Barre Coal Co. Pittston Coal Mining Co.
Sugar Station National Mining Co.
Summerville Nancy Corporation
Sunbury Allied Chemical Corporation Anthracite Briquette Co. Edison Electric Illuminating Co. Middle Creek Electric Co. P.A. Power & Light - Sunbury Station Pennsylvania Power & Light Co. Sunbury and Northumberland Electric Susquehanna Silk Mills Wilson & Co. Young Door Co.
Sunnytown Pike SFK Industries, Inc.
Susquehanna Erie Railroad
Swarthmore Swarthmore College
Swedeland Alan Wood Iron & Steel Co. Koppers Co., Inc. - Tar Products Division Norris Smelting & Refining R. Heckscher and Sons Allenwood Steel Co. Rainey Wood Coke Co. Smith Kline & French US Bureau of Mines
Swedesboro Smith Kline & French
Swiftwater Kingston Electric Co. National Drug Co. - Research and Development Building
Swissvale Pittsburgh Die & Casting Co Union Switch and Signal Co.
Sygam National Mining Co.
Sykesville Cascade Coal and Coke Co. Pawhattan Coal and Coke Co. Sykesville Coke Co.
Tacony Erben Harding Co. Holmesburg, Tacony and Frankford Electric Railway Co. Munition Plant Northern Metals Co. Philadelphia Electric Co. Pennsylvania Forge Corp. Station J Tacony Iron and Metal Co. Tacony Ordnance Corporation Universal Dye Works
Tamaqua Draper & Yost, inc. East Lehigh Colliery Lehigh Coal and Co. Lehigh Materials Co. (aka Tamaqua Colliery)
Tamarack Consolick Com Station
Tarentum A.P. Green Fire Brick Co. Allegheny Industrial Supply Allegheny Valley Street Railway Co. Allegheny Valley WaterCo. Anchor Brewing Co. Borough of Tarentum Farentum Borough Pittsburgh Plate Glass Co. Tarentum Light and Water Plant Tarentum Paper Mills
Taylor Delaware, Lackawanna and Western Railroad Co. Pyne Colly
Teannette Peoples Natural Gas Co.
Temple Berillium Corporation Empire Steel Products Kawecki Berylco Ind. Seaboard Steel and Manganese Corp. Temple Furnace Temple Iron Co.
Templeton Apollo Gas Co. Apollo Iron & Steel Co.
Thornton Delaware County Prison
Thurlow Chester Improvement Co.
Tipton Pittsburgh Plate Glass
Tire Hill Bird Coal Co.
Titusville A.P. Green Fire Brick Co. of W NY Cyclops corporation Cytemp Specialty Steel Enterprise Transit Co. Gage Co. Struthers and Wells Titusville Iron Works United Engineering & Foundry Co. Universal Cyclops Steel Co.
Tobyhanna Tobyhanna Signal Depot US Signal Corps - Administration Building
Toledo Mather Co. Sun Oil
Topton Caloric Appliance Corporation
Torrance Torrance State Hospital
Towanda International Paper Co.
Trafford City Security Investment Co. Westinghouse Electric & Manufacturing Co.
Trainer BP Oil Co. British Petroleum Co. Bryton Chemical Co. Tosco Refining Co. Sinclair Refining Co.
Traveskyn National Mining Co.
Tredyffrin Township All State Insurance Co.
Trenton American Standard
Treverton Treverton Electric Light and Power Station
Trevose Betz Labs
Trexlertown F.& M. Schaefer Brewing Co. Trexlertown Paper Box Co.
Tripoli Lynn Heidelberg School
Trooper Trooper High School
Trotter H.C. Frick Coke Co.
Trout Run Dewart Milk Products Co.
Troy New Jr High School
Tryone American Railway Co.
Tullytown Megargee Paper Mills United States Government Shell Loading Plant #
Tunkhannock Charmin Paper Co - Mechoopany Mill Procter and Gamble
Turtle Creek Westinghouse Electric Co. - A B Building
Tuscarora Maryland Coal Co.
Twin Oaks E I Dupont De Nemours & Co. Sun Oil Co.
Tyler Cascade Coal and Coke Co.
Tyrone Home Electric Light and Steam Heating Co. West Virginia Pulp & Paper Co. Westvaco Pulp and Paper
Union City Standard Chair Co.
Union Station H.C. Frick Coke Co.
Uniontown Brier Hill Coke Co. John S. Pepson Marlsbary Manufacturing Co. O C Cluss Lumber Co. Orient Coal and Coke Co. Tower Hill Connellsville Coke Co. Uniontown Hospital Uniontown Senior High School Washington Coal and Coke Co. Washington Steel & Ordnance Co.
Universal United States Steel Corp. Univ Atlas Cem Div of USS Corp. Universal Atlas Cement
University Park Pennsylvania State University
Upland L & L Manufacturing Co.
Upper Dublin Prudential Insurance Building
Upper Marion Smith Kline & French
Upper Milford Upper Milford School
Upper Mount Bethel Metropolitan Edison Co.
Valley Forge Baldwin-Eher-Hill Co. Chester City Keene Corporation Valley Forge State park
Vandergrift American Sheet & tin Plate Co. Apollo Iron & steel Co. Chilled Roll Foundry US Steel Corporation - Vandergrift Works United Engineering and Foundry Co. Vandergrift Electric Light and Power Co. Vandergrift Land and Improvement Co. Wean United
Verona Allegheny Refining Co Crane Co. Edgewater Steel Co. Koppers Company, Inc. Suburban Water Co. Union Specialties Woodings Verona Steel Works
Versailles National Tube Works Co. Sabins Manufacturing Co.
Vestaburg Jones & Laughlin Steel Corp.
Villanova Villanova College Villanova University
Vintondale Lackawanna Coal and Coke co. Lackawanna Iron and Steel Co. Vinton Colliery Co.
Vulcan Mill Creek Coal Co.
W. Newton Republic Steel Corp.
W. Conschohocken Westfield River Paper Co.
W. Elizabeth Hercules Picco Resins
Walford Bessemer Limestone Co.
Wallace Run Plant Babcock & Wilcox Co.
Walnut Hill H.C. Fick Coke Co.
Walton Marsh Plate Glass Co.
Waltz Mills International Paper Co. Westinghouse Electric Corporation
Wampum Beaver Coal and Coke Co. Crescent Portland Cement Co. Medusa Portland Cement Co.
Wanamie Colliery #18 Lehigh and Wilkes Barre Coal CO. Peoples Street Railway Co. Wanamie Colliery
Warminster Fischer Porter Philadelphia Electric
Warren Bell Telephone Co. of PA Conewango Refining Co. King Keystone Laco Applicators, Inc. - Waren State Boiler House Penn Electric Sherwood Refining Co., Inc. Struthers Station United Refining Co. Warren Light and Power Co.
Washington Allegheny Ludlum Steel Corp. Brockway Glass Co., Inc. Carnegie Natural Gas Co. Christopher Mining Co. Citizens Water Supply Co. Fairmont Supply Co. Hazel Atlas Glass Co. Jessop Steel Co. McClure Co. Mcgraw-Edison Precision Products Co. Trinity Middle School Tygart Glass Tyler Charcoal Iron Tin Mills Tyler Tube and Pipe Co. Washington Electric Light and Power Co. Washington Hospital Washington Ice Co. Washington Jefferson College Washington Steel Co. Washington Tin Plate Co. Washington Tool & Machine Co.
Washingtonville Danville Powerhouse Montour Power Plant Pennsylvania Power & Light Co. Washingtonville Power Plant
Waterburg Lincoln Coal and Coke Co.
Waterford Kelly Wooden Ware Co.
Watsontown Glen Gery Shale Brick Corp. Watsontown Door and Sash Co.
Watts Columbia Rolling Mill Co.
Waymart Y-Auditorium State Correctional Institution
Wayne A T & T American Telephone & Telegraph Bell Telephone Cherion and Radnor Gas and Electric Co. Merion and Radnor Gas and Electric Co. United Gas Improvement Co.
Waynesboro Hydro-Blast Corp. Landis Machine Co. Landis Tool Co. Teledyne, Inc.
Waynesburg Carnegie Natural Gas Co. Equitable Gas Energy Co. Waynesburg Electric Light and Power Co.
Weatherby Read and Lovatt Manufacturing Co.
Wehrum Lackawanna Coal and Coke Co.
Weidmann Lehigh Silk Dyeing Co.
Wellsboro Wellsboro Electric Co.
Wellsville Perrex Aluminum
Wernersville Wernersville State Hospital
Wescosville Lehigh County Home
West Brownsville Vesta Coal Co.
West Chester American Gas and Elecric Co. Bonded Products Brandywine Mushroom Co. East Senior High School Edison Electric Illuminating Co. Lenape Forge, Inc. National Foam Co. Philadelphia Suburban R.M. Armstrong US Steel Corporation West Chester Chemical West Chester Laundry West Chester University Weyeth Laboratories, Inc.
West Conshohocken Glassine Paper Co. Philadelphia Electric Co. Westfield River Paper Co. Inc. Philadelphia Electric Co. Philadelphia Gas & Electric
West Copley Lehigh Portland Cement Co.
West Elizabeth Detroit Steel Products Pennsylvania Industrial Chemical Co. - Jefferson Plant Rockpoint Sand Company of Pittsburgh
West Hazelton Hazelton Sewage Sandusky Foundry
West Leechburg Allegheny Ludlum Steel Corp.
West Mayfield Babcock & Wilcox
West Mifflin Allegheny County Airport Bettis Atomic Power Laboratory Continental Can General Electric Harison Walker USX Irving Works Westinghouse Bettis Westinghouse Electric Co.
West Newton Republic Steel Corp. West Newton Paper Co. Westmoreland Paper Co.
West Pittston Clear Spring Coal Co. Exeter Colliery
West Point Merck, Sharpe and Dohme
West Reading Marine Corps Recruiting Depot Metropolitan Edison Co.
West Run Allegheny Baker Chair and Wagon iron Manufacturing Co.
West View Locher's Green House
West Winfield Penn-Dixie Cement Co.
West York Medusa Portland Cement Co.
Westfield Eberle Tanning Co. Westfield Tanning Co.
Westmoreland County H.C. Frick Coke Co.
Wexford American Schack Co., Inc.
Wheatland Armco Steel (Saw Hill Tube Division) Shenango Steel
White Haven Jefferson Medical College Hospital, White Haven Div. Welsbach - State Correctional Inst. Whitehaven Sanatorium
White Marsh Junction American Magnesia and Covering Co.
White Valley People Natural Gas
Wilburton Midvalley Coal Co.
Wildwood Pennsylvania Water Co.
Wilkensburg Penn Heat and Power Co. Peoples Natural Gas Co.
Wilkes Barre Algonquin Coal Co. American Car & Foundry Bendix Corporation Bennett Station Bennett Steel, Inc. Central Poor District of Luzerne Co. Delaware and Hudson Co. Hazard Manufacturing Co. Henry Colliery Hollenbach Colliery #2 and #5 J.E. Patterson Laurel RunCoal Co. Lehigh and Wilkes Barre Coal Co. Lehigh Coal and Navigation Co. Lehigh Valley Coal Co. Mineral Railroad & Mining Co. Mineral Spring Colliery (aka Wilkes Barre Lace Manufacturing) Muskin Manufacturing Co. Okonite Co. Pennsylvania Gas & Water Co. Peoples Bank Plymouth Coal Co. Prospect Colliery R.D. Isaacs and Son Stagmaier Brewing Co. Stone Canyon Consolidated Coal Co. Summit Branch Railroad Co. Susquehanna Coal Co. Tioga Coal Co. United Steel and Wire Wilkes Barre Anthracite Coal Co. Wilkes Barre College Wilkes Barre Co. Wilkes Barre Electric Light Co. Wilkes Barre Gas and Electric Co. Wilkes Barre Steam Heat Co. Wilkes Barre Railway Co. Wyoming Engineering Co. Wyoming Valley Electric Light, Heat & Power Co.
Wilkinsburg Columbia Hospital Horner School Building Penn Heat and Power Co. Pennsylvania Water Co. Wilkinsburg Electric Co. Wilkinsburg High School
Willburton Midvalley Coal Co.
Williamsburg Pennsylvania Electric Co. - Power Plant Swees Steel Co. West Virginia Pulp and Paper Co. Westvaco
Williamsport Country Dry Wall Glyco Chemicals Division Lycoming Edison Co. Lycoming Electric Co. M.W. Kellogg New Williamsport High School Park Hotel Phoenix Utility Co. R.J.Carey Co. Stone & Webster Engineering Sweet's Steel Williamsport Powerhouse Williamsport Technical Institute
Williamstown Bear Valley #1 Boiler House Bear Valley Shaft No 2 Shaft Summit Branch Mining Co. Summit Branch Railroad Co.
Willow Grove Chew-Bittel Co. Naval Air Station Quaker State Machine Co. Valley Forge Hospital Willow Grove Air Station Willow Grove Naval Base
Willow Street Willow Street Vo-Tech Building
Wilmen Shenango Furnace Co.
Wilmerding Bendix Westinghouse Co. Westinghouse Air Brake Co.
Wilmington Pusey and Jones Shipbuilding Co.
Wilpen Shenango Furnace Co.
Wilson Large Distilling Co.
Windber Berwind White Coal Mining Co. Cominsky Warehouse Eureka Colliery #35 Mac Service, inc. Windber Electric Co.
Windgap Supradur
Winton Dolph Coal Co.
Wireton Duquesne Light Co. South Heights Power Station
Wissahicken Monsey Products
Wissinoming Hellwig Silk Dying Co.
Womelsdorf Narco Plant - Womelsdorf Plant North American Refinery Co.
Woodland Harbison-Walker Refractories Co. Jones and Laughlin Steel Co. Lower Works Woodland Fire Brick Co.
Woodlawn Aliquippa Works Jones and Laughline Steel Co.
Woods Run Pittsburgh Forge and Iron Co.
Woodville Allegheny County Home Allegheny County Institution District Allegheny County Poor Farm Directors of the Poor of Allegheny County
Worcester Schwenkfelder Church
Wrightsville Aurora Furnace Columbia Rolling Mill Co.
Wyalusing New Secondary School
Wyncote Joseph Heacokc
Wyndmoor Lankenau Hospital - Nurses School
Wyoming Dail Rock Coal Co. Keystone Plantation Lehigh Valley Coal Co. Malthby Colliery Mount Lookout Coal Co. Pennsylvania Coal Co. Simpson and Watkins Temple Iron Co.
Wyside Grasselli Powder Co.
Yardley Dr. Lawrence Siegel's Residence New Jersey and Pennsylvania Traction Co. Saint Ignatius Church
Yatesboro Cowanshannock Coal and Coke Co.
Yeadon Parkview Court Apartments Theodore Presser
York Alexander Good Elementary School Allis-Chalmers Manufacturing Co. Borg Warner Corp. Caterpiller Tractor Co. Certain Teed Production Corporation Continental Wire & Cable Custom Insulation Co. Edison Electric Light Co. Edison Light and Power Co. Eng Research Bld 19 Test Coil Fabricating Engineering, Inc. Grantley Road, York County Hardinge Co. J.E. Baker Co. Keystone Roofing Co. Mc Kay Co. McKay Corporation McKinley Elementary School Medusa Portland Cement Co. New York Wire Cloth Co. P H Gladfelter Co Penn Dairies, Inc. S. Morgan Smith Co. Sandusky Cement Co. Schmidt and Ault Paper Co. Stone Container Corp. (aka St. Regis Paper) Sylvania Electric Product Co. US Government - Special Ordinance Plant Westside Osteopathic Hospital Wheelwright and Mudge Yoder Industries York City Steam Plant York Corporation York Corrugating Co. York County Courthouse York Hospital York International Corp. York Junior College, Library York Manufacturing Co. York Shipley Inc. York Water Co. Yorktowne Hotel
York Haven Brunner Island Power Plant International Paper Co. Pennsylvania Power & Light Southern Kraft Division International Paper Co. Westinghouse Electric Co. Yorkhaven Paper Co.
York Run H.C. Frick Coke Co.
Yorklyn National Vulcanized Fiber Co.
Yorktown American Oil Co. United States Navy Mine Depot
Youngstown Allied Chemical Corp.
Youngwood Westinghouse Electric Co.
Yukon Westmoreland Coal Co.
Zeleinople Johns Manville Products Co. Dowty Corporation Lava Crucilbe Refractories Robinson Ventilating Co. Toolmatic Co. Universal Rubber Products Co. Alloy Propeller Co.
Zullarsville Carnegie Natural Gas Co.
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