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John Kunkel Small - Public Domain
United States Congress - Public Domain
Apollo Temu - CC BY 2.0
Tord Kopland Eid - Public Domain
unknown - CC BY-SA 3.0
unknown - Public Domain
Public Domain
Bain News Service, publisher - Public Domain
No preciso - CC BY-SA 4.0
Contemporary portrait - Public Domain
unknown, British 20th century -
Stephencdickson - CC BY-SA 4.0
original uploader - Public Domain
US Government Printing Office - Public Domain
user at project - Public Domain
Jeanbastiengmo - CC BY-SA 3.0
Pierre-Olivier Combelles - CC BY-SA 3.0
US Government - Public Domain
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John Kunkel Small - Public Domain
Small, John Kunkel, 1869-1938
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Porto Alegre, Manuel de Araújo, 1806-1879
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Mamet, David
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United States Congress - Public Domain
Weaver, James H., 1927-
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Apollo Temu - CC BY 2.0
Mwinyi, Ali Hassan, 1925-
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Tord Kopland Eid - Public Domain
Hoff, Trygve J.B.
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Brown, Obadiah B., 1779-1852
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unknown - CC BY-SA 3.0
Durrell, Lawrence
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unknown - Public Domain
Blok, Aleksandr Aleksandrovich, 1880-1921
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Public Domain
Marshall, James Wilson, 1810-1885
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Bain News Service, publisher - Public Domain
Cline, Maggie, 1857-1934
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No preciso - CC BY-SA 4.0
Arguedas, José Maria
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Contemporary portrait - Public Domain
Buxton, Thomas Fowell, Sir, 1786-1845
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Giardini, Felice, 1716-1796
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unknown, British 20th century -
Eden, Anthony, Earl of Avon, 1897-1977
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Spallanzani, Lazzaro, 1729-1799
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Stephencdickson - CC BY-SA 4.0
Smirke, Robert, 1780-1867
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Conca, Tommaso 1734-1822
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original uploader - Public Domain
Houck, Leo F. (Leo Florian), 1888-1950
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US Government Printing Office - Public Domain
Fisher, O. C. (Ovie Clark), 1903-1994
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user at project - Public Domain
Garstang, John, 1876-1956
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US Government Printing Office - Public Domain
Shannon, James, 1952-
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Carlson, Paul, 1928-1964
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Pelton, Lester A. (Lester Allen), 1829-1908
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Jeanbastiengmo - CC BY-SA 3.0
Monnier, Mathilde
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Ellenborough, Edward Law, earl of, 1790-1871
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De Franco, Buddy, 1923-
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Stevens, John H. (John Harrington), 1820-1900
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Pierre-Olivier Combelles - CC BY-SA 3.0
Bayfield, Henry Wolsey, 1795-1885
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US Government - Public Domain
Hunt, E. Howard (Everette Howard), 1918-2007