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Ezra Ames - Public Domain
unknown - Public Domain
Herbert Rose Barraud - Public Domain
Steven K. Baum - CC BY-SA 1.0
YellowGranite - CC BY-SA 4.0
American Press Association, New York - Public Domain
Julio Enriquez - CC BY 2.0
user at project -
Al Aumuller, World-Telegram staff photographer - Public Domain
Ellis & Walery - Public Domain
Davis & Sanford (photography studio) - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
unknown (photo taken and reworked by Chriusha - Public Domain
NASA - Public Domain
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Ezra Ames - Public Domain
Lansing, John, 1754-1829
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unknown - Public Domain
Ringling, William Otto, 1858-1911
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Brown, Pete, 1940-
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Herbert Rose Barraud - Public Domain
Barrie, J.M. (James Matthew), 1860-1937
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Howson, J. S. (John Saul), 1816-1885
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Subotnick, Morton
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Steven K. Baum - CC BY-SA 1.0
Baum, Steven K., 1953-
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Bolotowsky, Ilya, 1907-1981
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Damer, Anne Seymour, 1748 or 1749-1828
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unknown - Public Domain
Nathan, Isaac, 1792-1864
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YellowGranite - CC BY-SA 4.0
Jeffreys, Gina
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Zlatarski, Vasil Nikolov, 1866-1935
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American Press Association, New York - Public Domain
Taylor, Edward T. (Edward Thomas), 1858-1941
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Gabrielli, Caterina, 1730-1796
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Julio Enriquez - CC BY 2.0
Douglas, Kirk, 1972-
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Steinmetz, Charles Proteus, 1865-1923
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user at project -
Hutner, Isaac, 1906-1980
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Cooper, Henry Allen, 1850-1931
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Al Aumuller, World-Telegram staff photographer - Public Domain
Kellems, Vivien, 1896-1975
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Ellis & Walery - Public Domain
Carte, Richard D'Oyly, 1844-1901
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Robineau-Desvoidy, J. B. (Jean-Baptiste), 1799-1857
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Davis & Sanford (photography studio) - Public Domain
Webb, Charles Henry, 1834-1905
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Loening, Grover, 1888-1976
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Owen, Wilfred, 1893-1918
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Payne, William, active 1776-1809
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Hood, Thomas, 1799-1845
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Bishop, Anna, 1810-1884
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Mathew Brady Levin Corot Handy - Public Domain
Deweese, John Thomas, 1835-1906
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unknown (photo taken and reworked by Chriusha - Public Domain
Maillart, Robert, 1872-1940
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NASA - Public Domain
Pierce, John R. (John Robinson), 1910-2002