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Mathew Brady - Public Domain
Quinn Dombrowski - CC BY-SA 2.0
Francie Shaw - CC BY-SA 3.0
Michelle Hood -
unknown - Public Domain
German Federal Archives (Bundesarchiv) eusc - CC BY-SA 3.0
NASA/Ames Research Center - Public Domain
Annemarie Heinrich (1912-2005) - Public Domain
Civil war photographs, 1861-1865, Library of Congress, Prints and Photographs Division. - Public Domain
Public Domain
Hans Pinn - Public Domain
unknown photographer - Public Domain
Paul Thompson - Public Domain
Félix Nadar - Public Domain
Staff Photographers - CC BY-SA 4.0
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Allan, David, 1744-1796
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Lewy, Hans, 1904-
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Ferrero, Edward, 1831-1899
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Mathew Brady - Public Domain
Scott, Robert K. (Robert Kingston), 1826-1900
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Corning, Erastus, 1794-1872
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Quinn Dombrowski - CC BY-SA 2.0
Goodwin, Doris Kearns, 1943-
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Bonington, Richard-Parkes, 1801-1828
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Lucier, Alvin
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Francie Shaw - CC BY-SA 3.0
Perelman, Bob.
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Shaver, Billy Joe
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Michelle Hood -
Mann, Sally, 1951-....
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unknown - Public Domain
Benoist, Fr., 1794-1878
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German Federal Archives (Bundesarchiv) eusc - CC BY-SA 3.0
Burckhardt, Jacob, 1818-1897
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NASA/Ames Research Center - Public Domain
Pollack, James B.
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Smart, Christopher, 1722-1771
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O'Keefe, Jeremiah Joseph, 1923-
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Annemarie Heinrich (1912-2005) - Public Domain
Joyce, Eileen, 1908-1991
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Civil war photographs, 1861-1865, Library of Congress, Prints and Photographs Division. - Public Domain
White, Julius, 1816-1890
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Mesonero Romanos, Ramón de, 1803-1882
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Public Domain
Nápravník, Eduard, 1839-1916
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Hans Pinn - Public Domain
Dz'igan, Shimʻon, 1905-1980
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unknown photographer - Public Domain
Call, Anson, 1810-1890
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Paul Thompson - Public Domain
Heckscher, August
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Förster, Emanuel Aloys, 1748-1823
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Cohen Gan, Pinchas
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Félix Nadar - Public Domain
Goncourt, Edmond de 1822-1896
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Staff Photographers - CC BY-SA 4.0
McVaugh, Rogers, 1909-2009
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Foltz, Clara Shortridge, 1849-1934
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Hardy, Thomas Masterman, Sir, 1769-1839
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Huntington, F. D. (Frederic Dan), 1819-1904