Image from Wikimedia Commons
Gage Skidmore photo from Flickr. - CC BY-SA 2.0
user at project - CC BY-SA 3.0
John Singer Sargent - Public Domain
Uploaded by Kenmayer - Public Domain
unknown - Public Domain
unknown / фотограф неизвестен - Public Domain
Unidentified photographer - Public Domain
Takkk - CC BY-SA 4.0
Paul Arthur Schilpp. - Public Domain
United Press - Public Domain
Challenge Future - CC BY 2.0
Public Domain - Public Domain
J.A. Ehnle / D.J. Sluyter. - Public Domain
Image from Wikimedia Commons
Gage Skidmore photo from Flickr. - CC BY-SA 2.0
Barton, David, 1954-
Image from Wikimedia Commons
user at project - CC BY-SA 3.0
Baker, Laurie, 1917-2007
Image from Wikimedia Commons
John Singer Sargent - Public Domain
Lowell, A. Lawrence (Abbott Lawrence), 1856-1943
Image from Wikimedia Commons
Uploaded by Kenmayer - Public Domain
Yezierska, Anzia, 1880?-1970
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unknown - Public Domain
Adamson, William Charles, 1854-1929
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Fagius, Paul, 1504-1549
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unknown - Public Domain
Reynolds, Daniel Harris, 1832-1902
Image from Wikimedia Commons
unknown / фотограф неизвестен - Public Domain
Danilov, I︠U︡. N. (I︠U︡riĭ Nikiforovich), 1866-
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unknown - Public Domain
Molina Campos, Florencio, 1891-1959
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Gentilini, Franco, 1909-1981
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Unidentified photographer - Public Domain
Ochtman, Leonard, 1854-1934.
Image from Wikimedia Commons
Takkk - CC BY-SA 4.0
Szőcs, Géza, 1953-
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Daggett, Naphtali, 1727-1780
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unknown - Public Domain
Diggles, Silvester, 1817-1880
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Bernstein, Walter
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Paul Arthur Schilpp. - Public Domain
Broad, C. D. (Charlie Dunbar), 1887-1971
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Century 21 Exposition (1962 : Seattle, WA)
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O'Higgins, Ambrosio, approximately 1720-1801
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Ferrer, José, 1912-1992
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United Press - Public Domain
McCarthy, Joseph, 1908-1957
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Challenge Future - CC BY 2.0
De Bono, Edward, 1933-....
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Rosenbloom, Benjamin L. (Benjamin Louis), 1880-1965
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Public Domain - Public Domain
Livingston, Walter, 1740-1797
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J.A. Ehnle / D.J. Sluyter. - Public Domain
Bosboom-Toussaint, A.L.G. (Anna Louisa Geertruida), 1812-1886
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Lavin, Linda, 1937-....
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Folger, Mayhew, 1774-1828
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unknown - Public Domain
Schirra, Wally, 1923-2007
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Mayer, Constance, 1775-1821
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Legendre, A. M. (Adrien Marie), 1752-1833
Image from Wikimedia Commons
unknown - Public Domain
Reisner, George Andrew, 1867-1942