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unknown - Public Domain
Marie Alexandre Alophe - Public Domain
Nv8200p - CC BY-SA 4.0
Y Drych - Public Domain
en - Public Domain
U.S. Naval Historical Center Photograph. - Public Domain
original uploader - Public Domain
Public Domain
Photograph - Public Domain
not stated - Public Domain
Rob Mieremet / Anefo - CC BY-SA 3.0
The U.S. National Archives -
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unknown - Public Domain
Stirling, A. M. W. (Anna Maria Wilhelmina), 1865-1965
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Hazen, Elizabeth Lee, 1888-
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La Mettrie, Julien Offray de 1709-1751
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Néel, Louis 1904-
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Bowie, Thomas F. (Thomas Fielder), 1808-1869
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unknown - Public Domain
Tebbutt, John, 1834-1917
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Marie Alexandre Alophe - Public Domain
Bayard, Jean-François-Alfred, 1796-1853
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Nv8200p - CC BY-SA 4.0
Gander, Forrest, 1956-....
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Y Drych - Public Domain
Lewis, Saunders, 1893-1985
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en - Public Domain
Little Wolf, -1904
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Gruppe, Charles Paul, 1860-1940
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U.S. Naval Historical Center Photograph. - Public Domain
Reeves, Joseph Mason, 1872-1948
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Spencer, Aubrey George 1795-1872
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unknown - Public Domain
Dolph, Cyrus A., 1840-1914
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unknown - Public Domain
Bandini, Arcadia, 1825-1912
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Taylor, John, 1757-1832
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original uploader - Public Domain
Abott, Bessie, 1878-1919
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Public Domain
Abbadie, Jean-Jacques-Blaise d', 1726-1765
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Weckerlin, Jean-Baptiste, 1821-1910
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François de Neufchâteau, Nicolas Louis, comte, 1750-1828
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Hossbach, Friedrich, 1894-
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Erdman, Jean
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Photograph - Public Domain
McCabe, C. C. (Charles Cardwell), 1836-1906
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not stated - Public Domain
Linton, W. J. (William James), 1812-1897
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unknown - Public Domain
Poleni, Giovanni, 1683-1761
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Ueland, Ole Gabriel, 1799-1870
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White, Clarence H., 1871-1925
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White, John Ernest, 1875-1949
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Rob Mieremet / Anefo - CC BY-SA 3.0
Lachs, Manfred
Image from Wikimedia Commons
The U.S. National Archives -
McCall, Tom, 1913-1983