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Vezenberg & Co - Public Domain
L. Szacinski / Oslo Museum - CC BY-SA 4.0
vernon.hyde - CC BY-SA 2.0
Paul Raphael Montford -
National Institutes of Health - Public Domain
unknown - Public Domain
Patrick Mimran - CC BY-SA 4.0
not stated - Public Domain
Wilson Center - CC BY-SA 3.0
Biographical Directory of the United States Congress - CC0 1.0
Hinnk - CC BY-SA 3.0
Adolf Dauthage - Public Domain
Undeciphered - Public Domain
Billiel12 - CC BY-SA 3.0
Public Domain
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Lewes, George Henry, 1817-1878
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Verlat, Charles, 1824-1890
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Vezenberg & Co - Public Domain
Nekrasov, Nikolaĭ Alekseevich, 1821-1877
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Vadier, 1736-1828
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Molenaar, Jan Miense, approximately 1610-1668
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Mora, Terézia, 1971-
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L. Szacinski / Oslo Museum - CC BY-SA 4.0
Egedius, Halfdan, 1878-1899
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vernon.hyde - CC BY-SA 2.0
Burrell, Kenny
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Hovey, Charles F., 1807-1859
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Paul Raphael Montford -
Gordon, Adam Lindsay, 1833-1870
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National Institutes of Health - Public Domain
Kirschstein, Ruth L.
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unknown - Public Domain
Blatchley, W. S. (Willis Stanley), 1859-1940
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Patrick Mimran - CC BY-SA 4.0
Mimran, Patrick, 1956-....
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unknown - Public Domain
Beard, Thomas, -1632
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Sargent, Henry
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Park, Chung-Hee 1917-1979
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not stated - Public Domain
Comstock, Harriet T. (Harriet Theresa), 1860-
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unknown - Public Domain
Lohr, Marie, 1890-1975
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Wilson Center - CC BY-SA 3.0
Calatrava, Santiago, 1951-....
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Biographical Directory of the United States Congress - CC0 1.0
Murdock, John Robert, 1885-1972
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Hinnk - CC BY-SA 3.0
Epstein, Robert P., 1955-...
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Ėrenburg, Ilʹi︠a︡, 1891-1967
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Adolf Dauthage - Public Domain
Rochleder, Friedrich, 1819-1874
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Undeciphered - Public Domain
Prume, Fr. (François), 1816-1849
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George II, King of the Hellenes, 1890-1947
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Rataj, Maciej, 1884-1940
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Billiel12 - CC BY-SA 3.0
Lawless, Billie, 1950-
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Reese, Lizette Woodworth, 1856-1935
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Public Domain
Steunenberg, Frank, 1861-1905
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Barine, Arvède, 1840-1908