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National Photo Company - Public Domain
unknown photographer -
Kreidezeichnung von J.Schmeller, Goethe-Nationalmuseum Weimar (1932) - Public Domain
Nemo - CC BY-SA 3.0
unknown photographer - Public Domain
unknown -
William Smith Pelletreau - Public Domain
unknown - Public Domain
Juanpisazusa - CC BY-SA 4.0
David Low - Public Domain
Bassano - Public Domain
Godefroy Engelmann - Public Domain
Jan - CC BY-SA 2.0
Signed by E. Billings. Most likely :en:Edwin Tryon Billings - Public Domain
Rebert -
Princevasuvadhnaayudhaya - Public Domain
Jarvin - CC BY-SA 3.0
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National Photo Company - Public Domain
Collins, Ross A. (Ross Alexander), 1880-1968
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Blanqui, Auguste, 1805-1881
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Sasaki, Nobutsuna, 1872-1963
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unknown photographer -
Kirk, Norman Eric, 1923-1974
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Hendrix, Wanda, 1928-1981
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Kreidezeichnung von J.Schmeller, Goethe-Nationalmuseum Weimar (1932) - Public Domain
Riemer, Friedrich Wilhelm, 1774-1845
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Boland, Mary, 1880-1965
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Nemo - CC BY-SA 3.0
Ibárruri, Dolores 1895-1989
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unknown photographer - Public Domain
Brandsma, Titus, 1881-1942
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Wood, Benjamin, 1820-1900
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unknown -
Reinwardt, C.G.C. (Caspar Georg Carl), 1773-1854
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William Smith Pelletreau - Public Domain
Wood, Silas, 1769-1847
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unknown - Public Domain
Ferrieri, Innocenzo, 1810-1887
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Skidelsky, Robert, 1939-
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Juanpisazusa - CC BY-SA 4.0
M. Angelica (Mary Angelica), Mother, 1923-
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David Low - Public Domain
Low, David, 1891-1963
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Bassano - Public Domain
Winslow, Lyttleton Forbes, 1844-1913
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Godefroy Engelmann - Public Domain
Czerny, Carl, 1791-1857
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Langle, Paul Antoine Marie Fleuriot, vicomte de, 1744-1787
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Truman, Martha Ellen, 1852-1947
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Jan - CC BY-SA 2.0
Lewis, Laurie, 1950-
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Salter, James.
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Signed by E. Billings. Most likely :en:Edwin Tryon Billings - Public Domain
Goodwin, Ichabod, 1794-1882
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Long, Crawford Williamson, 1815-1878
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Rebert -
Ebert, Roger.
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Princevasuvadhnaayudhaya - Public Domain
Čhunlačhakkraphong, Prince, grandson of Chulalongkorn, King of Siam, 1907-1963
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Jarvin - CC BY-SA 3.0
Bocuse, Paul, 1926-....
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Zworykin, V.K. (Vladimir Kosma), 1889-1982
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Allen, Danielle S., 1971-....
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unknown - Public Domain
Smith, Edward H. (Edward Hanson), 1889-1961