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Smithsonian Institution -
Puttyhead - CC BY-SA 4.0
Carl Seffner - Public Domain
unknown<br/> - Public Domain
HFprofemail - CC BY-SA 4.0
Marshall Astor - CC BY-SA 2.0
Public Domain
Ctruongngoc - CC BY-SA 3.0
Crisco 1492 - CC BY-SA 4.0
attributed to William Henry Fairfax (1804 - 1837) - Public Domain
Tzetzes - CC BY-SA 4.0
Prints and Photographs Division, Library of Congress, Digital ID# ppmsca-13430 - Public Domain
Harper’s Weekly, January 5, 1861, (detail), Collection of U.S. House of Representatives - Public Domain
Keith Allison - CC BY-SA 2.0
Walter Stoneman (1876-1958) - Public Domain
Griselda Ramirez Griseldarmz - CC BY-SA 3.0
unknown - Public Domain
Unknown - Public Domain
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Robertson, J. Ross (John Ross), 1841-1918
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Smithsonian Institution -
Harrington, John Peabody
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Puttyhead - CC BY-SA 4.0
Ford, Kenneth William, 1926-....
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Carl Seffner - Public Domain
Hildebrand, Rudolf, 1824-1894
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Lammers, Hans Heinrich, 1879-1962
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unknown<br/> - Public Domain
Pickens, Lucy Petaway Holcombe
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HFprofemail - CC BY-SA 4.0
Fielding, Helen, 1958-....
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Ieng Thirith, 1932-
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Charpentier, Alexandre, 1856-1909
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Love, A.E.H. (Augustus Edward Hough), 1863-1940
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Marshall Astor - CC BY-SA 2.0
Iturbide, Graciela, 1942-....
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Public Domain
Stearns, Ozora Pierson, 1831-1896
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Ctruongngoc - CC BY-SA 3.0
Reichenbach, François -1993
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Belon, Pierre, 1517?-1564
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Greene, Thomas, 1658-1738
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Robinson, James W. (James Wallace), 1826-1898
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Crisco 1492 - CC BY-SA 4.0
Carey, P. B. R.
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attributed to William Henry Fairfax (1804 - 1837) - Public Domain
Raguet, Condy, 1784-1842
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Farnèse, Margherita, Duchess of Parma, -1646
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Tzetzes - CC BY-SA 4.0
Haldeman-Julius, E. (Emanuel), 1888-1951
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Prints and Photographs Division, Library of Congress, Digital ID# ppmsca-13430 - Public Domain
Chamberlin, Frank Tolles, 1873-1961
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Harper’s Weekly, January 5, 1861, (detail), Collection of U.S. House of Representatives - Public Domain
Jones, John James, 1824-1898
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Salomon, Johann Peter, 1745-1815
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Keith Allison - CC BY-SA 2.0
Shepard, Bert, 1920-2008
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Stainback, Ingram Macklin, 1883-1961
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Walter Stoneman (1876-1958) - Public Domain
Baldwin, Stanley Baldwin, Earl, 1867-1947
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Griselda Ramirez Griseldarmz - CC BY-SA 3.0
Jones, Adam, 1963-....
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unknown - Public Domain
Howe, Richard Howe, Earl, 1726-1799
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Maquet, Auguste, 1813-1888
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Unknown - Public Domain
Hall, Owen, 1853-1907