Author
Unknown author
4
Philadelphia Rapid Transit Company
3
Moore, Samuel T. 1855-
2
Richards, Joseph T. (Joseph Thomas) 1845-1933
2
American Society for Testing Materials
1
Apfelbaum, Charles
1
Appel, Charles G.
1
Baldwin Locomotive Works
1
Colt, Roswell L. (Roswell Lyman) 1779-1856
1
Colton, William Francis 1841-1921
1
Cook, Lewis D.
1
Cooke, Jay 1821-1905
1
Coryell, Lewis S. 1788-1865
1
Cox, Harold E. Dr
1
Day family
1
Elizabeth Rhoads and Hananah Carter
1
Fallon, Christopher
1
Felton, S. M. (Samuel Morse) 1809-1889
1
Felton, Samuel Morse 1853-1930
1
Flagg, J. Foster (Josiah Foster) 1828-1903
1
Freeze, Richard
1
Gaunt Rhoads, Mary
1
Greenfield, Albert M. 1887-1967
1
Hagley Museum and Library
1
Harrison, Joseph 1810-1874
1
Haupt, Herman 1817-1905
1
Historical Society of Pennsylvania
1
J. G. Brill Company
1
Kennedy, David Johnston 1816-1898
1
Kimber, Thomas, Jr
1
Kirk, R. A., (Reuben Albert)
1
Kittell, William
1
Kneass family
1
Knowles, Gustavus W.
1
Lee, Wallace Rogers b. 1879
1
Lehigh Valley Railroad Company
1
Leiper Railroad
1
Lobdell Car Wheel Company
1
Lovell, Margaretta
1
MacArthur, Hugh
1
Markle, Alvan 4th
1
Meredith family
1
Morris
1
Naef, Weston J., 1942- and Mary M. Naef
1
Painter, Uriah Hunt 1837-1900
1
Patton, William Augustus 1849-1927
1
Philadelphia Transportation Company
1
Philadelphia and Camden Bridge and Terminal Company
1
Philadelphia and Trenton Railroad Company
1
Read family
1
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