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Robert Knudsen - Public Domain
user at project - CC BY-SA 3.0
Raupp, Erwin -
unknown - Public Domain
Municipal Archives of Trondheim - CC BY 2.0
Franz Hanfstaengl - Public Domain
Nv8200p - CC BY-SA 3.0
Scanned and uploaded by JGHowes - Public Domain
National Institutes of Health - Public Domain
U.S. Government Printing Office (Washington, DC), publisher. - Public Domain
Tobywon - CC BY-SA 3.0
Public Domain
Photo not credited in any obvious way - Public Domain
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Robert Knudsen - Public Domain
Powers, David F. (David Francis), 1912-
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Kitaōji, Rosanjin, 1883-1959
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Pendleton, Alexander Swift, 1840-1864
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user at project - CC BY-SA 3.0
Sellars, Peter
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Shore, Dinah, 1917-1994
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Raupp, Erwin -
Lindau, Rudolf, 1829-1910
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unknown - Public Domain
Law, William, 1809-1892
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unknown - Public Domain
Press, Michael, 1872-1938
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Municipal Archives of Trondheim - CC BY 2.0
Saeverud, Harald
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Seeckt, Hans von 1866-1936
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Franz Hanfstaengl - Public Domain
Mitterwurzer, Anton 1818-1876
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Nv8200p - CC BY-SA 3.0
Shrake, Edwin
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Berthelot, M. (Marcellin), 1827-1907
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Scanned and uploaded by JGHowes - Public Domain
Hale, Bessie, 1841-1915
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National Institutes of Health - Public Domain
Kolb, Lawrence C. (Lawrence Coleman), 1911-2006
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U.S. Government Printing Office (Washington, DC), publisher. - Public Domain
Simon, Paul, 1928-2003
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Clay-Clopton, Virginia, 1825-1915
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Nv8200p - CC BY-SA 3.0
Gore, Kristin, 1977-
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Ogden, Aaron, 1756-1839
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unknown - Public Domain
Parry, Milman.
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Portal, Antoine, 1742-1832
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Lyon, Francis Strother, 1800-1882
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Hart, Ernest Abraham, 1835-1898
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Tobywon - CC BY-SA 3.0
Jones, Dewitt
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Suhrawardī, Yaḥyá ibn Ḥabash, 1152 or 1153-1191
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Public Domain
Lane, Henry Smith, 1811-1881
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Photo not credited in any obvious way - Public Domain
Squire, Watson C. (Watson Carvosso), 1838-1926
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unknown - Public Domain
Angell, Truman O. (Truman Osborn), 1810-1887
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Smith, A. L. (Arthur Lionel), 1850-1924
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Nicolai, Friedrich, 1733-1811