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Public Domain
unknown - Public Domain
Acme News Photos - Public Domain
Rprof - CC BY-SA 3.0
Eric Mourlot - Public Domain
US Army - Public Domain
Catherine Buisson, 1930, after Elisa Desrivières, 1870 - CC BY 4.0
scanned and cropped by Jim Heaphy - Public Domain
ServiceAT - CC BY-SA 3.0
unattributed - Public Domain
No claim is made in the original distribution. - Public Domain
National Photo Company Collection (Library of Congress) - Public Domain
Scanned and processed by Mariluna - Public Domain
Allan warren - CC BY-SA 3.0
Image from Wikimedia Commons
Public Domain
Davidson, John, 1887-1968
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Public Domain
Tanjé, Pieter, 1706-1761
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La Vallière, Louis César de la Baume Le Blanc, duc de, 1708-1780
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Kirby, S. Woodburn (Stanley Woodburn), 1895-
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unknown - Public Domain
Barnes, Mary Sheldon, 1850-1898
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Hoffmeister, Franz Anton, 1754-1812
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Acme News Photos - Public Domain
Owens, Jesse, 1913-1980
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Rprof - CC BY-SA 3.0
Chatsworth House (Derbyshire, England)
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King, Clarence, 1842-1901
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Copley, William Nelson, 1919-1996
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Eric Mourlot - Public Domain
Mourlot, Fernand
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US Army - Public Domain
Bagley, James Warren, 1881-1947
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Catherine Buisson, 1930, after Elisa Desrivières, 1870 - CC BY 4.0
Caventou, Joseph-Bienaimé, 1795-1877
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scanned and cropped by Jim Heaphy - Public Domain
LeConte, Joseph N. (Joseph Nisbet), 1870-1950
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Whistler, George W. (George Washington), 1800-1849
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ServiceAT - CC BY-SA 3.0
Gunn, J. E. (James Edward), 1938-
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Olson, Anna, 1968-
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unknown - Public Domain
Fulton, William Savin, 1795-1844
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unattributed - Public Domain
Brownson, Willard H. (Willard Herbert), 1845-1935
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No claim is made in the original distribution. - Public Domain
Williams, Hosea, 1926-
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unknown - Public Domain
Tombaugh, Clyde William, 1906-1997.
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Selye, Hans, 1907-1982
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Keller, Gottfried, 1819-1890
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unknown - Public Domain
Cruto, Alessandro, 1847-1908
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National Photo Company Collection (Library of Congress) - Public Domain
Guevara, Pedro, 1879-1938
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Scanned and processed by Mariluna - Public Domain
Philby, Kim, 1912-1988
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Nichols, Ernest Fox, 1869-1924
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Tierney, George, 1761-1830
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Wainwright, Jonathan Mayhew, 1792-1854
Image from Wikimedia Commons
Allan warren - CC BY-SA 3.0
Hird, Thora