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J G Murray - Public Domain
*:File:Kidd_self-portrait.JPG - CC BY-SA 3.0
Public Domain
Bostonian13 - CC BY-SA 3.0
U.S. Government Printing Office. - Public Domain
Sarah Stierch - CC BY 2.0
Governo De Sergipe - CC BY-SA 2.0
unknown photographer - Public Domain
unknown - Public Domain
Gmauri - Public Domain
Bain News Service, publisher - Public Domain
Jacksonbiscuit - CC BY-SA 3.0
Pinikadia - CC0 1.0
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Cicognara, Leopoldo, conte, 1767-1834
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King, William Lyon Mackenzie, 1874-1950
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J G Murray - Public Domain
Lydgate, John, 1370?-1451?
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Largo Caballero, Francisco, 1869-1946
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Suckley, Margaret, 1891-1991
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Crutzen, Paul J., 1933-....
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Wild, Susan Ellis, 1957-
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*:File:Kidd_self-portrait.JPG - CC BY-SA 3.0
Kidd, William, 1790?-1863
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Public Domain
Green, G. G. (George Gill), 1842-1925
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Bostonian13 - CC BY-SA 3.0
Arthur and Elizabeth Schlesinger Library on the History of Women in America
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U.S. Government Printing Office. - Public Domain
Bolles, Stephen, 1866-1941
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Whitney, Caspar, 1862?-1929
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Crain, William Henry, 1848-1896
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Herbert of Lea, Sidney Herbert, Baron, 1810-1861
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Sarah Stierch - CC BY 2.0
Bailey, Herman Kofi, Jr., 1931-1981
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Governo De Sergipe - CC BY-SA 2.0
Pires, Maria João
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Śankarācārya
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unknown photographer - Public Domain
Hastings, Lansford Warren, 1819-approximately 1870
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unknown - Public Domain
Yang, Gladys.
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Mennes, John, Sir, 1599-1671
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Gmauri - Public Domain
Wight, Martin
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Cuno, Wilhelm
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Cist, Henry Martyn, 1839-1902
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Martin, James G. (James Grubbs), 1935-
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Servetus, Michael, 1511?-1553
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Bain News Service, publisher - Public Domain
Davis, Arthur Paul, 1904-1996
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Schulze, Gottlob Ernst, 1761-1833
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Jacksonbiscuit - CC BY-SA 3.0
Pacheco, Ana Maria, 1943-....
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Trueba, Antonio de 1819-1889
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Pinikadia - CC0 1.0
Christensen, Benjamin, 1879-1959