Image from Wikimedia Commons
Daderot - CC0 1.0
20th Century Fox - Public Domain
The Library of Congress -
Contemporary photograph - Public Domain
Anonymous - Public Domain
Brady National Photographic Art Gallery - Public Domain
Wuselig - CC BY-SA 3.0
Eddy Westveer, Permission granted by E-mail - CC BY-SA 2.0
unknown - Public Domain
Unknown military photographer of the Signal Corps - Public Domain
Helen Hyde - Public Domain
According to the AWM, the maker of this image is the "British Ministry of Information" - Public Domain
Public domain - Public Domain
Stephencdickson - CC BY-SA 4.0
Hubmann, Hanns -
Gage Skidmore - CC BY-SA 3.0
Image from Wikimedia Commons
Pudovkin, Vsevolod Illarionovich, 1893-1953
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Deml, Jakub, 1878-1961
Image from Wikimedia Commons
Daderot - CC0 1.0
Reaugh, Frank, 1860-1945
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Cadwalader, George, 1806-1879
Image from Wikimedia Commons
20th Century Fox - Public Domain
Canary, David
Image from Wikimedia Commons
The Library of Congress -
Jones, Claude
Image from Wikimedia Commons
Contemporary photograph - Public Domain
Chadwick, Edwin, 1800-1890
Image from Wikimedia Commons
Anonymous - Public Domain
Loubon, Emile, 1809-1863
Image from Wikimedia Commons
Brady National Photographic Art Gallery - Public Domain
Rosecrans, William S. (William Starke), 1819-1898
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Wuselig - CC BY-SA 3.0
Winkelmann, Adolf, 1946-....
Image from Wikimedia Commons
Eddy Westveer, Permission granted by E-mail - CC BY-SA 2.0
Hargrove, Roy
Image from Wikimedia Commons
unknown - Public Domain
Philidor, F. D. (François Danican), 1726-1795
Image from Wikimedia Commons
Unknown military photographer of the Signal Corps - Public Domain
Baade, Paul W. (Paul William), 1889-1959
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Anker, Nini Roll, 1873-1942
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Husband, Rick Douglas, 1957-2003
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Helen Hyde - Public Domain
Hyde, Helen, 1868-1919
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According to the AWM, the maker of this image is the "British Ministry of Information" - Public Domain
Catroux, Georges, 1877-1969
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Soley, James Russell, 1850-1911
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Haller, Stanisław, 1872-1940
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Public domain - Public Domain
Cauchy, Augustin Louis, baron, 1789-1857
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unknown - Public Domain
Smith, Erminnie A., 1836-1886
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Clark, Abraham, 1726-1794
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unknown - Public Domain
Wagner-Jauregg, Julius, 1857-1940
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Stephencdickson - CC BY-SA 4.0
Napier, David, 1790-1869
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Lind, Jens, 1874-1939
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Jenkins, Edward, 1838-1910
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Lynch, David, 1946-....
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Hubmann, Hanns -
Milch, Erhard, 1892-1972
Image from Wikimedia Commons
Gage Skidmore - CC BY-SA 3.0
Chavez, Linda
Image from Wikimedia Commons
Curly, approximately 1856-1923