Author
Baltimore (Md.). Department of Transportation
1
Blankenburg, Rudolph, 1843-1918
1
Boorse, J. W.
1
Burt, John
1
Cox, Harold E. Dr
1
Creighton, Thomas
1
Downtown Partnership of Baltimore
1
Eden, Judith Shuman d. 2008
1
Esler, Frederic B.
1
Feustel, Robert M.
1
Foreman, George A.
1
George de Benneville Keim Memorial Collection
1
Hagley Museum and Library
1
Hallowell, Guernsey A.
1
Hartwell, Edward M.
1
IRT Subway System (New York, N.Y.)
1
Interboroudh Rapid Transit Company (New York)
1
Jeffress, Philip W.
1
Jones, Clarence
1
McChord, Charles Caldwell
1
Meier, Albert E.
1
Metropolitan Rail Road Company (Philadelphia, Pa.)
1
Meyers, Allen
1
Miller, John A. 1895-
2
Moore, J. Hampton 1864-1950
1
National Railway Historical Society. Philadelphia Chapter
1
New Jersey. Department of Transportation
1
New York Chamber of Commerce
1
New York Chamber of commerce of the state of New York
1
Penn Supreme Court
1
Pennsylvania. Public Service Commission
3
Philadelphia (Pa.)
1
Philadelphia (Pa.) Councils Law Committee
1
Philadelphia (Pa.) Dept. of City Transit
1
Philadelphia (Pa.) Transit Commissioner
1
Philadelphia (Pa.) Urban Traffic and Transportation Board
4
Philadelphia (Pa.). Department of Public Property
1
Philadelphia (Pa.). Urban Traffic and Transportation Board
6
Philadelphia City Planning Commission
1
Philadelphia Rapid Transit Company
11
Philadelphia Rapid Transit Company Glass Plate Negative Collection
1
Philadelphia Record
8
Philadelphia Transportation Company
4
Philadelphia Transportation Company,
1
Ravelli, Robert J., 1956-
1
Robert R. Nathan Associates
1
Roberts, Thomas
1
Sechler, Robert P.
1
Simulation Systems Inc
1
Smith, Charles Morton
1
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