Author
Philadelphia Record
6
Morse, Samuel Finley Breese, 1791-1872
4
International Mercantile Marine Co
3
Vail, Alfred, 1807-1859
3
Wilson, William Bender, 1839-1919
3
Bell Telephone Company of Pennsylvania
2
Briggs, Charles Frederick, 1804-1877
2
Egle, William Henry, 1830-1901
2
Newcomen Society of the United States
2
Pennsylvania. Office of the Auditor General
2
Abbott, Charles C. 1843-1919
1
Blanz, Robert C.
1
Boston (Mass.). City Council
1
Brazil. Comissão de Linhas Telegráficas Estratégicas de Mato Grosso ao Amazonas
1
Clark, William J. 1840-1889
1
Danielian, N. R.
1
Davis, Daniel, Junior
1
Dickerson, E. N. 1824-1889
1
Disturnell, J.
1
Duerig, Alfred W.
1
Edmonds, N. Frank
1
Enterprise Telegraph Company
1
Griscom, George
1
Gunston, David
1
Hill, N. P. 1832-1900
1
Hubbel, Horatio d. 1875
1
Ingersoll, Robert Green, 1833-1899
1
Kendall, Amos, 1789-1869
1
Koch, Walter K.
1
Kravif, Hy, 1909-
1
Langdon, William Chauncy, 1871-1947
1
Loomis, Elisha S. 1852-1940
1
Marconi, Degna, 1908-
1
Mason, Otis Tuftman, 1838-1908
1
Maverick, Augus
1
Maverick, Augustus
1
Morin, M. 1795-1880
1
Morse, Edward Lind, 1857-1923
1
Morse, Samuel F. B.
1
Mullaly, John
1
O'Brien, John Emmet, 1848-
1
O'Reilly, Henry, 1806-1886
1
Page, Arthur W. 1883-1960
1
Paulsen Club
1
Pennsylvania State Library
1
Pennsylvania. Department of Internal Affairs
1
Philadelphia Chamber of Commerce. Educational Committee
1
Philadelphia Chess Club
1
Pickering, John
1
Plum, William Rattle
1
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