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Allan warren - CC BY-SA 3.0
United States Air Force - Public Domain
unknown<br /> - Public Domain
Unknown, possibly a self portrait - Public Domain
unknown - Public Domain
Rev. James J. McGovern, D.D. - Public Domain
Ministério da Cultura - CC BY 2.0
William Cochrane (1831-1898) and John Castell Hopkins (1864-1923) - Public Domain
User :de:MarcoKraus -
Ide family album - Public Domain
original uploader - Public Domain
Harris & Ewing, photographer - Public Domain
Rghm - CC BY-SA 4.0
Time Inc - Public Domain
author - Public Domain
Erling Mandelmann - CC BY-SA 3.0
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Suratt, Valeska, 1882-1962
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Allan warren - CC BY-SA 3.0
Evans, Edith, Dame, 1888-1976
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United States Air Force - Public Domain
Northrop, John Knudsen, 1895-1981
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Colleoni, Bartolomeo, 1400-1475
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unknown<br /> - Public Domain
Merrick, Joseph Carey, 1862-1890
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Hellman, Isaias W. (Isaias William), 1842-1920
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Unknown, possibly a self portrait - Public Domain
Watson, Edith S., 1861-1943
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Stevens, Leith, 1909-1970
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unknown - Public Domain
Cyon, Élie de, 1843-1912
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Rev. James J. McGovern, D.D. - Public Domain
Starr, Eliza Allen, 1824-1901
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Thompson, Smith, 1768-1843
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Burns, Edward J., 1892-1980
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Ministério da Cultura - CC BY 2.0
Nobre, Marlos, 1939-....
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William Cochrane (1831-1898) and John Castell Hopkins (1864-1923) - Public Domain
Walsh, John, 1830-1898
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User :de:MarcoKraus -
Christensen, Hayden, 1981-....
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Briquet, John, 1870-1931
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Ide family album - Public Domain
Ide, William Brown, 1796-1852
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Shao, Yong, 1011-1077
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original uploader - Public Domain
Rafn, Carl Christian, 1795-1864
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unknown - Public Domain
Livingston, Robert, 1654-1728
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Harris & Ewing, photographer - Public Domain
Chrysler, Walter P. (Walter Percy), 1875-1940
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Rghm - CC BY-SA 4.0
Cameron, John Allan
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Time Inc - Public Domain
Cord, Errett Lobban, 1894-1974
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author - Public Domain
Harker, Charles Garrison, 1835-1864
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Pace, Peter, 1945-
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Wells, G. Wiley (Guilford Wiley), 1840-1909
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Scherzer, Karl, Ritter von, 1821-1903
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Piombino, Elisa Bonaparte Baciocchi, principessa di, 1777-1820
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Yarbrough, Glenn, 1930-
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Erling Mandelmann - CC BY-SA 3.0
Amoyal, Pierre