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Rukomii - CC BY-SA 4.0
Spiessens - CC BY-SA 4.0
Bodkyn - CC BY-SA 3.0
Siebbi - CC BY 3.0
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Thomas Crofts 1722-1781 -
Unknown Oberthur collection - Public Domain
unknown - Public Domain
National Park Service - Public Domain
Juan Lovera - Public Domain
Walden69 - Public Domain
Gage Skidmore - CC BY-SA 3.0
Nv8200p - CC BY-SA 3.0
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Public Domain
Cardigan, James Thomas Brudenell,, Earl of, 1797-1868
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Rukomii - CC BY-SA 4.0
Lecesne, James
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Spiessens - CC BY-SA 4.0
Frapié, Léon, 1863-1949
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Bodkyn - CC BY-SA 3.0
Wallace, Naomi
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Lewis, Ted, 1892-1971
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Grädener, Hermann, 1844-1929
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Siebbi - CC BY 3.0
Sander, Otto, 1941-2013
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original uploader - Public Domain
Daniels, Winthrop More, 1867-1944
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Haynes -
Darwin, Francis Sacheverell, Sir, 1786-1859
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Ameghino, Florentino, 1853-1911
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Thomas Crofts 1722-1781 -
Crofts, Thomas, 1722-1781
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Haines, William, 1900-1973
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Daddario, Emilio Q. (Emilio Quincy), 1918-2010
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Unknown Oberthur collection - Public Domain
Guenée, A. (Achille), 1809-1880
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unknown - Public Domain
Gavin, Leon Harry, 1893-1963
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Pastor, Ludwig, Freiherr von, 1854-1928
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Laing, David, 1793-1878
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Virginia Union University (Richmond, Va.)
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National Park Service - Public Domain
Knowles, Tony, 1943-
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Todd, W. E. Clyde (Walter Edmond Clyde), 1874-1969
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Konopiński, Emil Jan (1911- ).
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Juan Lovera - Public Domain
Lovera, Juan, 1776-1841
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Walden69 - Public Domain
Sébillot, Paul, 1843-1918
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Stewart, Harold
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Gage Skidmore - CC BY-SA 3.0
MacFarlane, Seth, 1973-....
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Dominy, Floyd E.
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Nv8200p - CC BY-SA 3.0
Chast, Roz
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Owen, Robert L. (Robert Latham), 1856-1947
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Marinsky, Jacob A. (Jacob Akiba), 1918-2005
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Clark, Ellery H. (Ellery Harding), 1874-1949