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unknown - Public Domain
Theodore C. Marceau - Public Domain
Nabokov - CC BY 3.0
Frantogian - CC BY-SA 3.0
KTo288 - CC BY-SA 3.0
LKWeidner - CC BY-SA 3.0
William Lindsay Windus - Public Domain
en - Public Domain
Dm4244 - CC BY-SA 4.0
Unidentified photographer - Public Domain
Wim van Rossem / Anefo -
Painted by :fr:Jean-Jacques Lagrenée - Public Domain
unknown - CC BY-SA 3.0
Domenico Induno - Public Domain
Robert Walker - Public Domain
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Grädener, Hermann, 1844-1929
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Brady, Hugh, 1768-1851
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unknown - Public Domain
Lukens, Theodore Parker, 1848-1918
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Warren, Earl, 1891-1974
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Theodore C. Marceau - Public Domain
Otis, Harrison Gray, 1837-1917
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McKennan, Thomas McKean Thompson, 1794-1852
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Nabokov - CC BY 3.0
Bishop, Ed
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Frantogian - CC BY-SA 3.0
Costa-Gavras, 1933-....
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Bandinelli, Baccio, 1493-1560
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KTo288 - CC BY-SA 3.0
Walters, Ian
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Denisov, Edison
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LKWeidner - CC BY-SA 3.0
Hopper, John D., 1923-1996
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Davis, John, 1550?-1605
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Paul II, Pope, 1417-1471
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Bridges, George William
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William Lindsay Windus - Public Domain
Windus, William Lindsay (British painter, 1822-1907)
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en - Public Domain
Roberts, Joseph J. (Joseph Jenkins), 1809-1876
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India.Arie
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Dm4244 - CC BY-SA 4.0
Hodgkin, Howard, 1932-....
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Unidentified photographer - Public Domain
Mount, William Sidney, 1807-1868
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Audsley, George Ashdown, 1838-1925
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Wim van Rossem / Anefo -
Ulmer, Georges
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unknown - Public Domain
Hurwitz, Adolf, 1859-1919
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Painted by :fr:Jean-Jacques Lagrenée - Public Domain
Piis, Pierre-Antoine-Augustin de 1755-1832
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unknown - CC BY-SA 3.0
Wilf, Herbert S., 1931-2012
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Service, James, 1823-1899
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Domenico Induno - Public Domain
Induno, Domenico, 1815-1878
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Robert Walker - Public Domain
Winslow, Edward, 1595-1655
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unknown - Public Domain
Spellman, John
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unknown - Public Domain
Smith, Arthur Donaldson, 1866-1939