Image from Wikimedia Commons
unknown - Public Domain
AgnosticPreachersKid - CC BY-SA 3.0
Public Domain
Unknown, irrelevant due to age - Public Domain
Whoisjohngalt - CC BY-SA 3.0
Louis Figuier - Public Domain
Contemporary photograph - Public Domain
Cecil W. Stoughton - Public Domain
iDominick - CC BY-SA 2.0
Ferenc Kozmata - Public Domain
user at project - Public Domain
Anefo - CC BY-SA 3.0
ABC Television - Public Domain
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unknown - Public Domain
Herbert, Xavier, 1901-
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Adrain, Garnett B. (Garnett Bowditch), 1816-1878
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Pérez de Castro, Evaristo 1778-1848
Image from Wikimedia Commons
AgnosticPreachersKid - CC BY-SA 3.0
Folger Shakespeare Library
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unknown - Public Domain
Wurmbrand-Vrabely, Stephanie, 1849-1919
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Public Domain
Canalizo, Valentín 1794-1850
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Unknown, irrelevant due to age - Public Domain
Rust, Albert, -1870
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Whoisjohngalt - CC BY-SA 3.0
Ludtke, Melissa
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Isherwood, B. F. (Benjamin Franklin), 1822-1915
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Vallerand, Jean, 1915-1994
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Cortez, Carlos, 1923-2005
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Laure, Marie, 1902-
Image from Wikimedia Commons
Louis Figuier - Public Domain
Vallière, Jean-Florent de 1667-1759
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Contemporary photograph - Public Domain
Candlish, Robert Smith, 1806-1873
Image from Wikimedia Commons
Cecil W. Stoughton - Public Domain
Tate, James H. J. (James Hugh Joseph), 1910-
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iDominick - CC BY-SA 2.0
Daniels, Jeff, 1955-....
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unknown - Public Domain
Bose, Satyendranath, 1894-1974
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Raimondi, Marcantonio, approximately 1480-approximately 1534
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Oswald, Eugène 1826-1912
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Ferenc Kozmata - Public Domain
Cossmann, Bernhard, 1822-1910
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Beale, Calvin L. (Calvin Lunsford), 1923-2008
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unknown - Public Domain
Sen, Dineshchandra, 1866-1939
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user at project - Public Domain
Nystedt, Knut, 1915-....
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Kensett, John Frederick, 1816-1872
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Walsh, Don, 1931-
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Anefo - CC BY-SA 3.0
Haley, Bill, 1925-1981
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Fenn, John B., 1917-2010
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ABC Television - Public Domain
Williams, Anson
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Mansfield, David Murray, Earl of, 1727-1796
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Arrau, Claudio, 1903-1991.