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Unknown military photographer of the Signal Corps - Public Domain
Adam Buck (1759–1833) - Public Domain
U.S. Government Printing Office. - Public Domain
Jehudo Epstein (1870–1945) - Public Domain
author - Public Domain
Unattributed - Public Domain
New Zealand Government, Office of the Governor-General - CC BY 4.0
Jac. de Nijs / Anefo - CC BY-SA 3.0
Adolf Dauthage - Public Domain
Chip.berlet - CC BY 3.0
unknown - Public Domain
unknown 19th century - Public Domain
NELSON J. LEONARD - CC BY-SA 4.0
Dan Harasymchuk - CC BY-SA 4.0
Sherman & McHugh - Public Domain
Quilbham & Genfield, LTD - Public Domain
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Hale, Philip Leslie, 1865-1931
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Grenville, William Wyndham Grenville, Baron, 1759-1834
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Unknown military photographer of the Signal Corps - Public Domain
Baade, Paul W. (Paul William), 1889-1959
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Smith, John Cotton, 1765-1845
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Warner, John, 1581-1666
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Adam Buck (1759–1833) - Public Domain
Hunt, Henry, 1773-1835
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U.S. Government Printing Office. - Public Domain
Kasem, George A. (George Albert), 1919-2002
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Gale, Eric
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Jehudo Epstein (1870–1945) - Public Domain
Marburg, Otto, 1874-1948
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author - Public Domain
Polk, Lucius Eugene, 1833-1892
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Conway, William Martin, Sir, 1856-1937
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Unattributed - Public Domain
Dunn, James C. (James Clement), 1890-1979
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New Zealand Government, Office of the Governor-General - CC BY 4.0
Wran, Neville, 1926-
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Jac. de Nijs / Anefo - CC BY-SA 3.0
Ansingh, Maria Elisabeth Georgina, 1875-1959
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Adolf Dauthage - Public Domain
Rochleder, Friedrich, 1819-1874
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Say, William, 1768-1834
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Laudenbach, Philippe, 1936-...
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Chip.berlet - CC BY 3.0
Forçade, Thomas King
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unknown - Public Domain
Rainolds, John, 1549-1607
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unknown 19th century - Public Domain
Crampton, Thomas Russell 1816-1888
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NELSON J. LEONARD - CC BY-SA 4.0
Elderfield, Robert Cooley, 1904-....
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Dan Harasymchuk - CC BY-SA 4.0
Galloway, Steven, 1975-
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unknown - Public Domain
Toole, John Lawrence, 1830-1906
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Sheean, Vincent, 1899-1975
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Preobrazhenskiĭ, E. A. (Evgeniĭ Alekseevich), 1886-1937
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Jenks, Michael H. (Michael Hutchinson), 1795-1867
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Warren, Robert Penn, 1905-1989
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Sherman & McHugh - Public Domain
Storrs, Richard S. (Richard Salter), 1821-1900
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Quilbham & Genfield, LTD - Public Domain
Mordkin, Mikhail, 1881-1944
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Jähns, Friedrich Wilhelm, 1809-1888