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U.S. Air Force - Public Domain
Gage Skidmore - CC BY-SA 3.0
Portait by unknown artist (ca. 1890) - Public Domain
Philip Morehead - CC BY 3.0
Walter Kappacher -
chascar - CC BY 2.0
Konrad Jacobs - CC BY-SA 3.0
unknown - Public Domain
NASA - Public Domain
California Department of Corrections - Public Domain
Phot. Hausamann, Heiden / ETH Zürich - CC BY-SA 3.0
Jaqen - CC BY-SA 3.0
HaWe - CC BY-SA 3.0
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Cameron, Julia Margaret, 1815-1879
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U.S. Air Force - Public Domain
Mathis, Robert C., 1927-
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Gage Skidmore - CC BY-SA 3.0
McEntire, Reba, 1955-
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Dozois, Gardner R.
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Walker, Francis, 1809-1874
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Portait by unknown artist (ca. 1890) - Public Domain
Bowen, John, 1780-1827
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Won Pat, Antonio Borja, 1908-1987
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Egan, Eddie, 1930-1995
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Bulgarin, Faddeĭ, 1789-1859
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Louÿs, Pierre, 1870-1925
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Tikhomirov, L. A. (Lev Aleksandrovich), 1852-1923
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Philip Morehead - CC BY 3.0
Morehead, Albert H. (Albert Hodges), 1909-1966
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Walter Kappacher -
Kappacher, Walter, 1938-...
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chascar - CC BY 2.0
Johnson, Eric, 1954-
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Konrad Jacobs - CC BY-SA 3.0
Possel, René de 1905-1974
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Duport, Adrien Jean François, 1759-1798
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unknown - Public Domain
Cook, O.F. (Orator Fuller), 1867-1949
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Howard, L.O. (Leland Ossian), 1857-1950
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Ozi, Étienne, 1754-1813
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Morgan, J. P. (John Pierpont), 1867-1943
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NASA - Public Domain
Ochoa, Ellen, 1958-
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Fulton, John F. (John Farquhar), 1899-1960
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California Department of Corrections - Public Domain
Sirhan, Sirhan Bishara, 1944-....
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unknown - Public Domain
Joubert, Laurent, 1529-1583
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Phot. Hausamann, Heiden / ETH Zürich - CC BY-SA 3.0
Bernoulli, Hans, 1876-1959
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Abbot, Charles, Baron Colchester, 1757-1829
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Jaqen - CC BY-SA 3.0
Paolini, Christopher
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HaWe - CC BY-SA 3.0
Fox, Charles James, 1798?-1874
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Lukis, Frederick Corbin, 1788-1871
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unknown - Public Domain
Hill, Billy, 1899-1940