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unknown - Public Domain
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Charlesdrakew - Public Domain
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Joseguztorres - CC BY-SA 3.0
Alan Light - CC BY 2.0
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Portrait by A. Tenney based on contemporary engraving, 1873 - Public Domain
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Plant, Arnold, Sir, 1898-....
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Angell, James Burrill, 1829-1916
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United States Army - Public Domain
Starbird, Alfred D. (Alfred Dodd), 1912-1983
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Françoise Farkas - CC BY-SA 3.0
Farkas, Ferenc, 1905-2000
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Vaillant, Jean-Baptiste Philibert, 1790-1872
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Ofek, Avraham, 1935-1990
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Erling Mandelmann - CC BY-SA 3.0
Baj, Enrico, 1924-2003
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unknown - Public Domain
Henle, Moritz 1850-1925
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Mathew Brady Levin Corot Handy - Public Domain
Hill, N. P. (Nathaniel Peter), 1832-1900
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Charlesdrakew - Public Domain
Akroyd, Edward, 1810-1887
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Ryan, Susan, 1942-
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Böcklin, Arnold, 1827-1901
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Bird, Junius Bouton, 1907-1982
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Schaudinn, Friedrich Richard, 1871-1906
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Hanson, Richard, Sir, 1805-1876
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Radio City Music Hall (New York, N.Y.)
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Ohconfucius - CC BY 3.0
Currie, Alannah, 1957-
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Goclenius, Rudolph, 1547-1628
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Gage Skidmore - CC BY-SA 3.0
Burke, Billy
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Florida Supercon - CC BY 2.0
Kenny, Tom (Thomas J.)
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Johnson, Walter, 1887-1946
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Chiou Hsinhuei - CC BY-SA 4.0
Nara, Yoshitomo, 1959-....
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Watt, James G., 1938-
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Photograph by Jack H. Smith. Department of National Defence / National Archives of Canada, PA-133972. - Public Domain
Foulkes, Charles, 1903-1969
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U.S. Air Force - Public Domain
Westover, Oscar, 1883-1938
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Joseguztorres - CC BY-SA 3.0
Cazals, Felipe, 1937-....
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Alan Light - CC BY 2.0
Carr, Allan
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Morozov, Nikolaĭ Aleksandrovich, 1854-1946
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Kristin Dos Santos - CC BY-SA 2.0
Shalhoub, Tony, 1953-...
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Portrait by A. Tenney based on contemporary engraving, 1873 - Public Domain
Badger, William, 1779-1852