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Public Domain
Louis Chorislithograph by Joseph Langlumé after the self-portrait of Louis Choris - Public Domain
Unknown author, must have been taken before 1911 - Public Domain
~Pyb - CC BY-SA 3.0
R. Swoboda - Public Domain
Unknown military photographer of the Signal Corps - Public Domain
Georg Wirnharter - CC BY-SA 3.0
unknown - Public Domain
Uncredited artist - Public Domain
Atlantic Records - Public Domain
:de:Julius Thaeter - Public Domain
Interaction-Design.org - CC BY-SA 2.0
user at project - Public Domain
Grasso Luigi - CC BY-SA 4.0
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Public Domain
Rose, Ernestine L. (Ernestine Louise), 1810-1892
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Nauck, August, 1822-1892
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Gibson, Bob, 1931-1996
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Louis Chorislithograph by Joseph Langlumé after the self-portrait of Louis Choris - Public Domain
Choris, Louis, 1795-1828
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Unknown author, must have been taken before 1911 - Public Domain
Whitman, Charles Otis, 1842-1910
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Dean, William F. (William Frishe), 1899-1981
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~Pyb - CC BY-SA 3.0
Cauwelaert, Didier van, 1960-
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R. Swoboda - Public Domain
Urban, Joseph, 1872-1933
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Unknown military photographer of the Signal Corps - Public Domain
Hobbs, Leland S. (Leland Stanford), 1892-1966
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Warren, Robert Penn, 1905-1989
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Berger, Ludwig, 1777-1839
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Baring, Francis, Sir, 1740-1810
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Georg Wirnharter - CC BY-SA 3.0
Pfrang, Erwin, 1951-
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unknown - Public Domain
Veitch, James Herbert., 1868-1907
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Szembek, Jan, hrabia, 1881-1945
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Uncredited artist - Public Domain
Seymour, William H.
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Hawks, Francis L. (Francis Lister), 1798-1866
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Atlantic Records - Public Domain
Baker, Lavern
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:de:Julius Thaeter - Public Domain
Rietschel, Ernst, 1804-1861
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Interaction-Design.org - CC BY-SA 2.0
Gardner, Howard, 1943-....
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Illich, Ivan, 1926-2002
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Gogolʹ, Nikolaĭ Vasilʹevich, 1809-1852
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Strother, David Hunter, 1816-1888
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Coburn, Charles
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Hagedorn, Jessica Tarahata, 1949-....
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Zarai͏̈, Rika
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unknown - Public Domain
Pontano, Giovanni Gioviano, 1429-1503
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Tokugawa, Nariaki, 1800-1860
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user at project - Public Domain
Holbek, Bengt, 1933-1992
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Grasso Luigi - CC BY-SA 4.0
Pearson, E. S. (Egon Sharpe), 1895-1980