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Gage Skidmore - CC BY-SA 3.0
PHGCOM -
Wellcome Trust - CC BY-SA 4.0
C. Geyer - Public Domain
Julius F. Taylor - Public Domain
anonymous -
William Stocking, Gordon K. Miller - Public Domain
Nick-D - CC BY-SA 4.0
Eurobas - CC BY-SA 3.0
By Julia Ward Howe - Public Domain
unknown - Public Domain
Original uploader was wWwwhatsup -
New York World-Telegram and the Sun Newspaper Photograph Collection staff photographer - Public Domain
Public Domain
ABC Television - Public Domain
Towpilot -
CBS - Public Domain
Various - Public Domain
Martin Kraft - CC BY-SA 3.0
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Gage Skidmore - CC BY-SA 3.0
Norquist, Grover Glenn
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PHGCOM -
Martiau, Nicholas, 1591-approximately 1657
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Ponsonby, Henry Frederick, Sir, 1825-1895
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Millöcker, Carl, 1842-1899
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Spohr, Louis, 1784-1859
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Wellcome Trust - CC BY-SA 4.0
Whitehead, Alfred North, 1861-1947
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C. Geyer - Public Domain
Schimper, K. Fr. (Karl Friedrich)
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Sarto, Andrea del 1486-1530
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Stinson, Bill, 1930-
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Julius F. Taylor - Public Domain
Waterman, Nixon, 1859-1944
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anonymous -
Gočár, Josef, 1880-1945
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William Stocking, Gordon K. Miller - Public Domain
Williams, John R., 1782-1854
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Nick-D - CC BY-SA 4.0
Gunn, Ronald Campbell, 1808-1881
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Eurobas - CC BY-SA 3.0
Cordier, Charles, 1827-1905
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By Julia Ward Howe - Public Domain
Sutherland, Evelyn Greenleaf, 1855-1908
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Meriwether, D. (David), 1800-1893
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unknown - Public Domain
Alcock, John, 1715-1806
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Original uploader was wWwwhatsup -
Sudden, Nikki
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Harper, Robert Goodloe, 1765-1825
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New York World-Telegram and the Sun Newspaper Photograph Collection staff photographer - Public Domain
United Artists Corporation
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unknown - Public Domain
Blondin, 1824-1897
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Auberjonois, René 1940-
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Public Domain
Baker, Joshua, 1799-1885
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ABC Television - Public Domain
Lange, Ted, 1948-
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Bismarck (Battleship)
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Towpilot -
Bergman, Daniel, 1962-
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Nini, Alessandro, 1805-1880
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CBS - Public Domain
Conway, Shirl
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Various - Public Domain
Kroll, William, 1901-1980
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Martin Kraft - CC BY-SA 3.0
Veiel, Andres, 1959-....