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Sadeler/De Vos - Public Domain
w:de:Friedrich Jentzen (Lithograf) - Public Domain
Philkon - CC BY-SA 3.0
Associated Students, University of California, Los Angeles - Public Domain
John Chester Buttre (1821-1893) - Public Domain
Twenty8000 - CC BY-SA 4.0
Mathew Brady Levin Corot Handy - Public Domain
Nathaniel Harris Morgan (1805-1881) - Public Domain
BiblioArchives / LibraryArchives - CC BY 2.0
U.S. federal government - Public Domain
John Collier - Public Domain
Public Domain
unknown -
Faris, John T. - Public Domain
died 70 years ago - Public Domain
J.C. Strauss Studio - CC0 1.0
unknown - CC0 1.0
Ursus Samaga - CC BY 3.0
Chas W. Freeman - CC0 1.0
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Sadeler/De Vos - Public Domain
Verdonck, Cornelis, 1563-1625
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Ishii, Kikujirō, 1866-1945
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w:de:Friedrich Jentzen (Lithograf) - Public Domain
Ancillon, Jean Pierre Frederic
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Philkon - CC BY-SA 3.0
Mankiller, Wilma Pearl, 1945-2010
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Desborough, William Henry Grenfell, Baron, 1855-1945
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Associated Students, University of California, Los Angeles - Public Domain
Powell, Lawrence Clark, 1906-2001
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Amdursky, Assaf
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John Chester Buttre (1821-1893) - Public Domain
Pierrepont, Hezekiah Beer, 1768-1838
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Twenty8000 - CC BY-SA 4.0
Miller, Ty, 1964-
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Mathew Brady Levin Corot Handy - Public Domain
Vance, Zebulon Baird, 1830-1894
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Nathaniel Harris Morgan (1805-1881) - Public Domain
Morgan, Charles, 1795-1878
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BiblioArchives / LibraryArchives - CC BY 2.0
Sandwell, B.K. (Bernard Keble), 1876-1954
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U.S. federal government - Public Domain
Herman, Jerry, 1931-
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John Collier - Public Domain
Stryker, Roy Emerson, 1893-1975
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Public Domain
De Lussan, Zélie, 1861-1949
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unknown -
Seroux d'Agincourt, J. B. L. G. (Jean Baptiste Louis Georges), 1730-1814
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Marggraf, Andreas Sigismund, 1709-1782
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Murri, Augusto, 1841-1932
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Public Domain
Chaucer, Geoffrey, -1400
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Stewart, Alexander Turney, 1803-1876
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Bayldon, Francis J. (Francis Joseph), 1872-1948
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Faris, John T. - Public Domain
Miller, J.R. (James Russell), 1840-1912
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died 70 years ago - Public Domain
Kane, Helen
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Bohr, Harald August, 1887-1951
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Hogg, Quintin, 1845-1903
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J.C. Strauss Studio - CC0 1.0
Block, Karl Morgan, 1886-1958
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unknown - CC0 1.0
Zapata de Mendoza, Antonio, 1550-1635
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Frei, Emil, III, 1924-2013
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Ursus Samaga - CC BY 3.0
Zimmermann, Tabea
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Chas W. Freeman - CC0 1.0
Freeman, Charles W.