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Alejandro Núñez Urtubia - Public Domain
unknown - Public Domain
author - Public Domain
The schatz house - CC BY-SA 3.0
Library of Congress. Photoduplication Service, photographer - Public Domain
Trelleek - Public Domain
anonymous - Public Domain
J. Fitzpatrick - CC BY 4.0
Etienne Jules Marey - CC0 1.0
Guggenheim Foundation - Public Domain
Clara Lucas Balfour - Public Domain
Arnold Genthe - Public Domain
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Alejandro Núñez Urtubia - Public Domain
Pérez Freire, Osmán, 1880-1930
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Mason, Hugh, 1820-1886
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Thompson, Thomas W., 1766-1821
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Carelli, Gabor
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Daunou, P. C. F. (Pierre Claude François), 1761-1840
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Negri, Ada, 1870-1945
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Morton, Sarah Wentworth, 1759-1846
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unknown - Public Domain
Toussenel, A. (Alphonse), 1803-1885
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Hall, Robert B. (Robert Bernard), 1812-1868
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Jellinek, Adolph, 1821-1893
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Todd, Eli, 1769-1833
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Northrop, John Howard, 1891-1987
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Bunge, N. Kh. (Nikolaĭ Khristianovich), 1823-1895
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author - Public Domain
Jackson, William Hicks, 1835-1903
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The schatz house - CC BY-SA 3.0
Schatz, Zahara, 1916-1999
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Library of Congress. Photoduplication Service, photographer - Public Domain
Wesley, Dorothy Porter, 1905-1995
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Wick, William W. (William Watson), 1796-1868
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Trelleek - Public Domain
Fawkes, Guy, 1570-1606
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anonymous - Public Domain
Ward, William George, 1812-1882
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Wordie, J. M. (James Mann), Sir, 1889-1962
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Kelly, Michael, 1762-1826
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J. Fitzpatrick - CC BY 4.0
Baxter, Philip, Sir, 1905-1989
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Czolgosz, Leon F., 1873?-1901
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Bultmann, Rudolf, 1884-1976
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Æsop
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Wilson, Glenn D. (Glenn Daniel)
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Etienne Jules Marey - CC0 1.0
Marey, Étienne-Jules 1830-1904
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Guggenheim Foundation - Public Domain
Cherniss, Harold F. (Harold Fredrik), 1904-1987
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Clara Lucas Balfour - Public Domain
Balfour, Clara Lucas, 1808-1878
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Arnold Genthe - Public Domain
Buck, Pearl S. (Pearl Sydenstricker), 1892-1973