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unknown - Public Domain
Photographer not credited - Public Domain
unknown - CC BY-SA 4.0
Cancillería del Ecuador - CC BY-SA 2.0
Furahiya - CC BY-SA 3.0
Kristin Dos Santos - CC BY-SA 2.0
US Congress Joint Cmte on Printing - Public Domain
user at project - Public Domain
Kansas City Royals / MLB - Public Domain
Kzirkel - CC BY-SA 3.0
State of Florida, Official Governors Portrait - Public Domain
James Caulfield - Public Domain
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unknown - Public Domain
Williams, William Carlos, 1883-1963
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Toch, Maximilian, 1864-1946
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Sale, Florentia Wynch, 1790-1853
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Photographer not credited - Public Domain
Cameron, William E. (William Evelyn), 1842-1927
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unknown - CC BY-SA 4.0
Kiepenheuer, K. O. (Karl Otto)
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Cancillería del Ecuador - CC BY-SA 2.0
Espinosa, María Fernanda 1964-
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O'Leary, Daniel Florencio, 1800-1854
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Bedell, Gregory Thurston, 1817-1892
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Nell, William C. (William Cooper), 1816-1874
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Furahiya - CC BY-SA 3.0
Pierson, Tom, 1948-
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Haywood, Big Bill, 1869-1928
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Bergasse, Nicolas, 1750-1832
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Kristin Dos Santos - CC BY-SA 2.0
Jones, Cherry, 1956-....
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unknown - Public Domain
Niven, William, 1850-1937
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Cochin, Augustin, 1823-1872
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unknown - Public Domain
Pain, Barry, 1864-1928
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US Congress Joint Cmte on Printing - Public Domain
Wilson, Bob, 1916-
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Brooke of Warwick Castle, George Greville, Earl, 1746-1816
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Bin Barakah, al-Mahdī, 1920-1965
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Prior, Matthew, 1664-1721
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Cannon, Robert M. (Robert Mylchrist), 1901-1976
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user at project - Public Domain
Strugnell, John, 1930-2007
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Kansas City Royals / MLB - Public Domain
Quisenberry, Dan, 1953-
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unknown - Public Domain
Khorana, Har Gobind, 1922-2011
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Kzirkel - CC BY-SA 3.0
Wood, Gordon S.
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State of Florida, Official Governors Portrait - Public Domain
Chiles, Lawton, 1930-1998
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Messer, Asa, 1769-1836
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James Caulfield - Public Domain
Canning, Elizabeth, 1734-1773
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Kogan, Leonid
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Rice, Jim, 1953-