- People
- Adams, Charles Francis, Jr
- Atterbury, William Wallace
- Branders, Louis
- Cassatt, A.J
- Cassatt, Alexander Johnston
- Cassatt, Andrew Johnston
- Clement, Martin Withington
- Ely, Theodore N
- Franklin, Walter S
- Kingsbury, F. H
- Kroner, Jack L
- Lee, Ivy
- Lefton, Al Paul
- Lindenthal, Gustave
- Malott, V. T
- McCrea, James
- McKenna, E. W
- Mitten, Thomas Eugene, 1864-1929
- Moore, Charles Willard, 1925-1993
- Phillips, Randolph
- Rea, Samuel
- Roberts, H. Armstrong
- Rosen, Jerome
- Samuel Rea
- Shapp, Milton J
- Teller, Grif
- Thomson, Frank
- Urdang, Nathan
- Willard, Daniel
- Young, Charles D
- Groups
- Adams Express Company
- Aerospace Industries Association of America
- Afl Cio
- Aflcio
- Air Products and Chemicals, inc
- Alameda Contra Costa Transit District (Calif.)
- AlamedaContra Costa Transit District (Calif.)
- Alexander and Fredericksburg Railway Company
- Alexandria and Fredericksburg Railroad Company
- Alexandria and Fredricksburg Railway Company
- Allegheny Valley Railroad Company
- Allied Chemical Corporation
- Altoona Works
- American Car and Foundry Company
- American Cyanamid Company
- American Express Company
- American Public Transit association
- American Steamship Company of Philadelphia
- Amtrak
- Apple Computer, Inc
- Associated General Contractors of America
- Association of American Railroads
- Association of American Railroads - Division of Accounting
- Atari, Inc
- B.F. Goodrich Company
- BSAF Aktiengesellschaft
- Bakery, Confectionary and Tobacco Workers International Union
- Baltimore and Eastern Railroad Company
- Baltimore and Philadelphia Railroad Company
- Baltimore and Potomac Railroad Company
- Bank of America
- Barney and Smith Car Company
- Beech Aircraft Corporation
- Bell Helicopter Company
- Bell Telephone Company of Pennsylvania
- Bell s Gap Railroad Company
- Bells Gap Railroad Company
- Belvidere and Delaware Railroad Company
- Bethlehem Steel Corporation
- Bituminous Coal Operators Association
- Boeing Company
- Boston and Maine Railroad
- Brotherhood of Locomotive Engineers (U.S.). General Committee of Adjustment for ConRail
- Buckeye Steam Shovel Company
- Bucyrus Company
- Budd Company
- Buffalo Creek Railroad Company
- Buffalo Valley Railroad Company
- Burlington Industries, Inc
- Burroughs Corporation
- Business Roundtable
- C. F. Jordan Company
- CIBA GEIGY Corporation
- CIBAGEIGY Corporation
- Cambria Steel Company
- Camden Seven Atlantic Railroad Company
- Camden and Atlantic Railroad Company
- Camden and Burlington County Railroad Company - Stocks - 19th century
- Canandaigua and Elmira Railroad Company
- Canbria Steel Company
- Cannon Mills Company
- Cape Charles Railroad Company
- Carborundum Company (Niagara Falls, N.Y.)
- Cargill, Inc
- Caterpillar Tractor Company
- Cayahoga Falls
- Center to Protect Workers Rights (U.S.)
- Cessna Aircraft Company
- Chase Manhattan Bank, N.A
- Chemical Manufacturers Association (U.S.)
- Chevron Chemical Company
- Chicago Transit Authority
- Chicago and Erie Railroad Company
- Chicago, Indiana and Eastern Railroad Company
- Chicago, Indiana and Eastern Railway Company
- Chicago, St. Louis and Pittsburgh Railroad Company
- Cincinnati and Muskingum Valley Railroad Company
- Cincinnati and Muskingum Valley Railway Company
- Cincinnati and Richmond Railroad Company
- Cincinnati, Lebanon and Northern Railroad Company
- Cleveland and Marietta Railway Company
- Cleveland and Pittsburgh Railroad Company
- Cleveland, Akron and Columbus Railroad
- Cleveland, Akron and Columbus Railroad Company
- Cleveland, Akron and Columbus Railway Company
- Coleco Industries, Inc
- Columbia Bridge Company
- Columbus and Eastern Railroad Company
- Columbus, Sandusky and Hocking Railway Company
- Commodore International
- Communaute? urbaine de Montre?al (Que?bec). Commission de transport
- Compaq Computer Corporation
- ConAgra, inc
- ConRail
- Contractors Mutual Association
- Control Data Corporation
- Coxe Brothers and Company, Incorporated
- Cray Research, Inc
- Cresson Springs Company
- Cross Creek Coal Company
- Crown Zellerbach Corporation
- Cumberland Valley Railroad Company
- Cumberland Valley and Martinsburg Railroad Company
- Dan Peter Kopple & Associates
- Dan River Mills Inc
- Dayton, Lebanon and Cincinnati Railroad Company
- Delaware Railroad Company - Stocks - 19th century
- Delaware Valley Regional Planning Commission
- Delaware and Raritan Canal Company
- Delaware, Lacawanna, and Western Railroad
- Delaware, Maryland and Virginia Railroad Company
- Dow Chemical Company
- Drexel & Company
- E.I. du Pont de Nemours & Company
- East St. Louis and Carondelet Railroad Company
- Eastman Kodak Company
- Easton and Northern Railroad Company
- Electronic Data Systems Corporation
- Elmira and Lake Ontario Railroad Company
- Elmira and Williamsport Railroad Company
- Elmira and Williamsport Railroad Company - Stocks - 19th century
- Empire Transportation Company
- Erie Canal Company - Stocks - 19th century
- Erie Car Works
- Erie Lackawanna Railroad Company
- Erie Railroad
- Erie and Pittsburgh Railroad Company
- Erie and Pittsburgh Railroad Company - Stocks - 19th century
- Erie, Shenango and Pittsburgh Railway Company - Stocks - 19th century
- ErieLackawanna Railroad Company
- Ethyl Corporation
- Express Company
- Exxon Corporation
- FMC Corporation
- Flxible Company
- GMC Truck & Coach
- GTE Corporation
- Geddes Brecher Qualls Cunningham: Architects
- General Dynamics Corporation
- General Electric Company
- General Motors Corporation
- General Semiconductor Industries, inc
- General Steel Industries
- Geo. A. Hormel & Company
- Girard Trust Company
- Glass Bottle Blowers Association of the United States and Canada
- Glass, Pottery, Plastic and Allied Workers International Union
- Goodyear Tire and Rubber Company
- Grand Rapids and Indiana Railroad Company
- Grand Rapids and Indianapolis Railroad Company
- Great American Chemical Corporation
- Great Southern Dispatch Railroad Company
- Grumman Aerospace Corporation
- Grumman International Incorporated
- Harrisburg, Portsmouth, Mount Joy and Lancaster Railroad Company
- Hercules Incorporated
- Hewlett Packard Company
- HewlettPackard Company
- Hitachi America
- Hitachi Seisakujo
- Honeywell Inc
- Hooker Chemical Corporation
- Hughes Aircraft Company
- ICI Americas, inc
- Illinois Car and Equipment Company
- Indianapolis and Vincennes Railroad Company
- Industrial Works
- International Business Machines Corporation
- International Harvester Company
- Intersil, Inc
- J.P. Morgan & Company
- J.P. Stevens & Co
- Jeddo Highland Coal Company
- JeddoHighland Coal Company
- Jefferson, Madison and Indianapolis Railroad Company
- Jeffersonville, Madison and Indianapolis Railroad Company
- Johnson & Johnson
- Johnsonburg Railroad
- Junction Railroad Company
- Koppers Company
- Lebanon and Reading Railroad Company
- Leeds & Northrup Company
- Lehigh Valley Coal Company
- Lehigh Valley Harbor Terminal Railway
- Lehigh Valley Railroad
- Lehigh Valley Railroad Company
- Lehigh Valley Railroad Company of New Jersey
- Lehigh Valley Terminal Railway
- Lehigh and Lake Erie Railroad
- Lehigh and New York Railroad
- Little Miami Railroad Company
- Lockheed California Company
- Lockheed Corporation
- LockheedCalifornia Company
- Logansport and Toledo Railway Company
- Long Island Railroad
- Long Island Railroad Company
- Lorain, Ashland, and Southern Railroad
- Louis T. Klauder & Associates
- Loyalsock Railroad Company
- Mallinckrodt, Inc. (St. Louis, Mo.)
- Manufacturing Chemists Association (U.S.)
- Marion Steam Shovel Company
- Market East Station (Philadelphia, Pa.)
- Martin Marietta Corporation
- Massachusetts Bay Transportation Authority
- McDonnell Douglas Corporation
- Merck & Co
- Metra (Ill.)
- Metro North
- Metro North Commuter Railroad
- Metro Transit (Seattle, Wash.)
- MetroNorth Commuter Railroad
- Metropolitan Atlanta Rapid Transit Authority
- Metropolitan Life Insurance Company
- Microsoft Corporation
- Middle States Freight Association
- Milwood Coal and Cinder Company
- Minnesota Mining and Manufacturing Company
- Mitten Management, Inc
- Mitten Men and Management Bank & Trust Company
- Mobil Corporation
- Monsanto Company
- Mont Alto Railroad Company
- Morgan Guaranty Trust Company of New York
- Motorola, Inc
- NCR Corporation
- NJ Transit
- National Electric Reliability Council
- National Institute for Occupational Safety and Health
- National Storage Company
- Neoplan USA Corporation
- New Haven Railroad
- New Jersey Railroad Company
- New Jersey Railroad and Transportation Company
- New York (State). Metropolitan Transportation Authority
- New York Central Railroad
- New York Central Railroad Company
- New York Central Railway
- New York World s Fair
- New York Worlds Fair
- New York and Erie Railroad Company
- New York and Green Lake Railway
- New York, Chicago, and St. Louis Railroad
- New York, Lake Erie, and Western Railroad Company
- New York, New Haven, and Hartford Railroad Company
- New York, Philadelphia and Norfolk Railroad Company
- New York, Philadelphia and Washington Railroad Company
- New York, Philadelphia, and Norfolk Ferry Company
- Norfolk and Western Railroad
- North and West Branch Railway
- Northern Central Railway
- Northern Central Railway Company
- Northern Railroad Company of New Jersey
- Northrop Corporation
- Occidental Petroleum Corporation
- Oil, Chemical, and Atomic Workers International Union
- Olin Corporation
- PUSH for Excellence Incorporated (Chicago, Ill.)
- Passenger Service Improvement Corporation of Philadelphia
- Penn Central Corporation
- Penn Central Transportation Company
- Pennsylvania Canal
- Pennsylvania Canal Company
- Pennsylvania Central Transportation Company
- Pennsylvania Company
- Pennsylvania Company. Allegheny Shops
- Pennsylvania Company. Fort Wayne Shops
- Pennsylvania Railroad
- Pennsylvania Railroad Company
- Pennsylvania Railroad. Altoona Shops
- Pennsylvania Railroad. Association of Transportation Officers
- Pennsylvania Railroad. Buffalo and Allegheny Valley Division
- Pennsylvania Railroad. Lines West
- Pennsylvania Railroad. Lines West of Pittsburgh
- Pennsylvania Railroad. Lines West of Pittsburgh. Union Lines
- Pennsylvania Railroad. Motive Power Accountant
- Pennsylvania Railroad. South West System
- Pennsylvania Railroad. Trustees of the Consolidated Mortgage of 1873
- Pennsylvania Railroad. West Philadelphia Shops
- Pennsylvania Reading Seashore Lines
- Pennsylvania and New York Canal and Railroad
- Pennsylvania and New York Canal and Railroad Company
- Pennsylvania and North Western Railroad Company
- Pennsylvania and Northwestern Railroad Company
- Pennsylvania. Dept. of Transportation
- PennsylvaniaReading Seashore Lines
- Pennwalt Corporation
- Philadelphia City Planning Commission
- Philadelphia Rapid Transit Company
- Philadelphia Suburban Transportation Company
- Philadelphia Transportation Company
- Philadelphia and Baltimore Central Railroad Company
- Philadelphia and Erie Railroad Company
- Philadelphia and Erie Railroad Company - Stocks - 19th century
- Philadelphia and Trenton Railroad Company
- Philadelphia and Trenton Railroad Company - Stocks - 19th century
- Philadelphia, Baltimore and Washington Railroad Company
- Philadelphia, Wilmington and Baltimore Railroad Company
- Pittsburgh and Erie Railroad Company
- Pittsburgh, Chartiers and Youghiogeny Railway Company
- Pittsburgh, Chartiers and Youghiogheny Railway Company
- Pittsburgh, Cincinnati and St. Louis Railway Company
- Pittsburgh, Cincinnati, Chicago and St. Louis Railway Company
- Pittsburgh, Cincinnati, Chicago and St. Louis Railway Company. Columbus Shops
- Pittsburgh, Cincinnati, Chicago and St. Louis Railway Company. Logansport Shops
- Pittsburgh, Cincinnati, Chicago, and St. Louis Railroad
- Pittsburgh, Concinnati and St. Louis Railway Company
- Pittsburgh, Concinnati, Chicag and St. Louis Railway Company
- Pittsburgh, Fort Wayne and Chicago Railroad Company
- Pittsburgh, Fort Wayne and Chicago Railway Company
- Pittsburgh, Virginia and Charleston Railroad Company
- Pittsburgh, Youngstown and Ashtabula Railroad Company
- Pittsburgh, Youngstown and Ashtabula Railway Company
- Pittsburgh, Youngstown and Ashtabula Railway Company - Stocks - 19th century
- Port Authority Trans Hudson Corporation
- Port Authority TransHudson Corporation
- Port Authority Transit Corporation
- Pressed Steel Company
- Procter & Gamble Company
- Pullman Car Company
- Pullman Company
- R.R. Donnelley and Sons Company
- Railroad Relief Association
- Railway Labor Executives Association
- Rainey Coke Company
- Ralston Steel Car Company
- Rath Packing Company
- Reading Company
- Reading Terminal (Philadelphia, Pa.)
- Regional Transportation District (Denver, Colo.)
- Rockewell International Corporation
- Rohm and Haas Company
- San Francisco Bay Area Rapid Transit District (Calif.)
- San Francisco Municipal Railway
- San Mateo County Transit District (Calif.)
- Schoen Pressed Steel Car Company
- Scott Paper Company
- Seagate Technology, Inc
- Shamokin Valley and Pottsville Railroad Company
- Shamokin Valley and Pottsville Railroad Company - Stocks - 19th century
- Shaw Electric Crane Company
- Society of the Plastics Industry
- Sodus Bay and Southern Railroad Company
- Southeastern Pennsylvania Transportation Authority
- Southeastern Pennsylvania Transportation Compact
- Southern California Rapid Transit District
- Southern Pennsylvania Railway and Mining Company
- Sperry Corporation
- St. Louis, Vandalia and Terre Haute Railroad
- St. Louis, Vandalia and Terre Haute Railroad Company
- St. Louis, Vandalia and Terre Haute Railway Company
- Standard Oil Company of California
- Standard Steel Car Company
- Star Union Line
- Stauffer Chemical Company
- Sterling Drug, Inc
- Streat Coal Company
- Summit Branch Railroad Company
- Sun Company
- Susquehanna Coal Company
- Swift & Company
- Synthetic Organic Chemical Manufacturers Association
- TRW Inc
- Tandy Corporation
- Terre Haute Car and Manufacturing Company
- Terre Haute and Indianapolin Railroad Company
- Terre Haute and Indianapolis Railroad Company
- Terre Haute and Indianapolis Railway Company
- Terre Haute and Logansport Railroad Company
- Terre Haute and Logansport Railway Company
- Terre Haute and Peoria Railroad Company
- Texas Instruments Incorporated
- The Lehigh Valley Rail Way
- The Lehigh Valley Rail Way Company
- Tioga Railroad Company
- Toledo and Walhonding Valley Railroad Company
- Toledo, Columbus and Ohio Railroad Company
- Toledo, Columbus and Ohio River Railroad Company
- Toledo, Walhonding Valley and Ohio Railroad Company
- Toronto Transit Commission
- Tri County Metropolitan Transportation District of Oregon
- TriCounty Metropolitan Transportation District of Oregon
- Union Carbide Corporation
- Union Oil Company of California
- United Engineers & Constructors, inc
- United Food and Commercial Workers International Union
- United Glass and Ceramic Workers of North America
- United New Jersey Railroads and Canal Company
- United States. Bureau of Labor Statistics
- United States. Dept. of Transportation
- United States. Equal Employment Opportunity Commission
- United States. Federal Highway Administration
- United States. Federal Railroad Administration
- United States. Interstate Commerce Commission
- United States. Labor Management Relations Act, 1947
- United States. National Aeronautics and Space Administration
- United States. National Labor Relations Board
- United States. National Transportation Safety Board
- United States. Occupational Safety and Health Administration
- United States. Occupational Safety and Health Review Committee
- United States. Office of Defense Transportation
- United States. Walsh Healey Public Contracts Act
- United States. WalshHealey Public Contracts Act
- United Steelworkers of America
- United Technologies Corporation
- Vandalia Railroad Company
- VisiCorp
- Vought Corporation
- Wang Laboratories, Inc
- Washington Metropolitan Area Transit Authority
- Wells and French Car Company
- West Jersey Railroad Company
- West Jersey Railroad Company - Stocks - 19th century
- West Jersey and Seashore Railroad Company
- Western Electric Company
- Western Jersey and Seashore Railroad Company
- Western New York and Pennsylvania Railroad Company
- Western New York and Pennsylvania Railway Company
- Western New York and Pennsylvania Railway Company. Buffalo and Allegheny Valley Division
- Western Steel Car Company
- Western Steel Car and Foundry Company
- Westinghouse Electric Corporation
- Westvaco Corporation
- Weyerhaeuser Company
- Wheeling Terminal Railway
- Wrightsville, York and Gettysburg Railroad Company
- Xerox Corporation
- Young Men s Christian associations
- Young Mens Christian associations
- Places
- Allegheny County, New York
- Altoona (Pa.)
- Atlanta (Ga.) - Local transit
- Atlantic City
- Baltimore (Md.)
- Bedford (Pa.)
- Beech Creek (Pa.)
- Bellefonte, Pa
- Boston (Mass.) - Local transit
- Bridgeport (Pa.)
- Broad Mountain (Pa.)
- Buffalo (N.Y.)
- Calvert (MD)
- Camden (N.J.)
- Canada - Views
- Catawissa (Pa.)
- Centre County (Pa.)
- Chicago (Ill.)
- Chicago (Ill.) - Local transit
- Chicago (Ill.) - Views
- Connecticut - Railroads
- Curwensville (Pa.)
- Delaware - Railroads
- Denver (Colo.) - Local transit
- Fairbrook (Pa.)
- Frackville (Pa.)
- Hazleton (Pa.)
- Hummelstown (Pa.)
- Illinois - Railroads
- Indiana - Railroads
- Lambert s Point (Pa.)
- Lamberts Point (Pa.)
- Lebanon (Pa.)
- Los Angeles (Calif.) - Local transit
- Maryland - Railroads
- Massachusetts - Railroads
- Michigan - Railroads
- Montre?al (Que?bec) - Local transit
- Moshannon (Pa.)
- Mount Carmel (Pa.)
- Nescopeck Creek (Pa.)
- New Boston (Pa.)
- New Jersey
- New Jersey - Railroads
- New York
- New York (N.Y.) - Local transit
- New York (N.Y.) - Real property
- New York (N.Y.) - Views
- New York (State) - Railroads
- Ohio - Railroads
- Pennsylvania - Railroads
- Philadelphia (Pa.)
- Philadelphia (Pa.) - Architecture
- Philadelphia (Pa.) - City planning
- Philadelphia (Pa.) - Local transit
- Philadelphia (Pa.) - Railroads
- Philadelphia (Pa.) - Real estate development
- Philadelphia (Pa.) - Views
- Phoenixville (Pa.)
- Pittsburgh (Pa.)
- Portland (Ore.) - Local transit
- Pottsville (Pa.)
- Reading, Pa
- Rhode Island - Railroads
- Robesonia (Pa.)
- San Francisco (Calif.) - Local transit
- Seattle (Wash.) - Local transit
- Shenandoah (Pa.)
- St. Lawrence Seaway
- Toronto (Ont.) - Local transit
- Tyrone (Pa.)
- United States - Politics and government
- United States - Views
- Virginia - Railroads
- Washington (D.C.) - Local transit
- Washington (D.C.) - Views
- West Virginia - Railroads
- Wilkes Barre (Pa.)
- Wilkesbarre (Pa.)