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July 1849 - Public Domain
Robert Scoble - CC BY 2.0
Frances Benjamin Johnston - Public Domain
Nikita - CC BY-SA 2.5
U.S Air Force - Public Domain
flickr31811564@N07 - CC BY-SA 2.0
Tzolag Hovsepian - CC BY-SA 4.0
Michael Dahl - Public Domain
Joi - CC BY 2.0
Engraver John Cochran, artist Henry Wyatt - Public Domain
Dover Street Studios, London. - Public Domain
Original uploader was :it:Werther W - Public Domain
Smithsonian Institution -
Mathew Brady Levin Corot Handy - Public Domain
No photographer credited. - Public Domain
unknown - Public Domain
Public Domain
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July 1849 - Public Domain
Kearny, Stephen Watts, 1794-1848
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Robert Scoble - CC BY 2.0
Leibovitz, Annie, 1949-....
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Frances Benjamin Johnston - Public Domain
Page, Thomas Nelson, 1853-1922
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Nikita - CC BY-SA 2.5
Ōshima, Nagisa, 1932-2013
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U.S Air Force - Public Domain
Old, Archie J., 1906-1984
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Leuschner, Armin Otto, 1868-
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Palmgren, Alvar, 1880-1960
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Montefiore, C. G. (Claude Goldsmid), 1858-1938
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flickr31811564@N07 - CC BY-SA 2.0
Sackler, Arthur
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Tzolag Hovsepian - CC BY-SA 4.0
Haykaz, Aram, 1900-1986
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Michael Dahl - Public Domain
Nicholson, Francis, 1655-1728
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Rodino, Peter W.
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Joi - CC BY 2.0
Metzner, Ralph.
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Lorde, André de, 1871-1942
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Radcliffe, Charles, 1693-1746
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Engraver John Cochran, artist Henry Wyatt - Public Domain
Lawrence, William Beach, 1800-1881
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Erastus, Thomas, 1524-1583
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Dover Street Studios, London. - Public Domain
Gilly, Dinh
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Original uploader was :it:Werther W - Public Domain
Fontana, Ferdinando, 1850-1919
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Revere, Paul, 1735-1818
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Smithsonian Institution -
Bernstein, Theresa
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Temkin, Owsei, 1902-2002
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Mathew Brady Levin Corot Handy - Public Domain
Locke, David Ross, 1833-1888
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Winterbottom, Thomas Masterman, 1765-1859
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Schoendienst, Red, 1923-
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No photographer credited. - Public Domain
Beasley, Delilah L. (Delilah Leontium), 1871-1934
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Denny, Arthur Armstrong, 1822-1899
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unknown - Public Domain
Kappelʹ, Vladimir Oskarovich, 1883-1920
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Public Domain
Tilton, Henry Remsen, 1836-1906
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Leaf, Walter, 1852-1927