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Unknown Military photographer - Public Domain
Repro: Albert H. Payne († 1902) - Public Domain
Edward Wilton Carpenter, Charles Frederick Morehouse - Public Domain
unknown photographer - Public Domain
see here for details: http://digitalgallery.nypl.org/nypldigital/id?1169097 - Public Domain
unknown - Public Domain
Kjell Bloch Sandved - Public Domain
Sarah K. Buka - Public Domain
ultomatt - CC BY 2.0
Professor Bop - CC BY 2.0
Photographer=Proctor Jones - Public Domain
Canadian Film Centre - CC BY 2.0
Image from Wikimedia Commons
Unknown Military photographer - Public Domain
Bragdon, John S. (John Stewart), 1893-1964
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Krausz, Michael, 1942-....
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Repro: Albert H. Payne († 1902) - Public Domain
Klafsky, Katharina 1855-1896
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Willoughby, Francis, Sir, approximately 1547-1596
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Woolley, Robert Wickliffe, 1871-1958
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Edward Wilton Carpenter, Charles Frederick Morehouse - Public Domain
Dickinson, Edward, 1803-1874
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Fuller, Hiram, 1814-1880
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Silvestre, Armand, 1837-1901
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Hay, George, Sir, 1715-1778
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Papen, Franz von 1879-1969
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unknown photographer - Public Domain
Partridge, William Ordway, 1861-1930
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see here for details: http://digitalgallery.nypl.org/nypldigital/id?1169097 - Public Domain
Giuliani, Mauro, 1781-1829
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Ornstein, Leo
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unknown - Public Domain
Minujin, Marta
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Langer, William, 1886-1959
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Himes, Chester B., 1909-1984
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Kjell Bloch Sandved - Public Domain
Calderón, Cleofé E.
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Daggett, Naphtali, 1727-1780
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Sweet, Blanche
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Sarah K. Buka - Public Domain
Tisza, László 1907-2009
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ultomatt - CC BY 2.0
Alden, Howard
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Professor Bop - CC BY 2.0
Scott, Jimmy, 1925-....
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unknown - Public Domain
Poggio, Giovanni, 1493-1556
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Anthony, Doug, 1929-
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Gallo, Dean Anderson, 1935-1994
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Gilmour, John, 1605?-1671
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Winnington, Francis, Sir, 1634-1700
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Photographer=Proctor Jones - Public Domain
Adler, Kurt Herbert
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Burr, George Lincoln, 1857-1938
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Canadian Film Centre - CC BY 2.0
Virgo, Clement