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The British Library -
unknown - Public Domain
Paul Buyer - CC BY-SA 3.0
C.M. Stieglitz, World Telegram staff photographer - Public Domain
Mezzotint by S. W. Reynolds, 1838, after Joshua Reynolds (1723 – 1792) - Public Domain
Brady-Handy Photograph Collection (Library of Congress) - Public Domain
unknown -
Proyecto Historiador 2 - CC BY-SA 3.0
ManArray - CC BY 3.0
U.S House of Representatives Photographer - Public Domain
part of Brady-Handy Photograph Collection (Library of Congress). - Public Domain
Google - Public Domain
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The British Library -
Doret, Gustave, 1866-1943
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unknown - Public Domain
Dupont, Gabriel, 1878-1914
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Bernis, François-Joachim de Pierre de, 1715-1794
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Smyth, James Carmichael, 1741-1821
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Ingenhousz, Jan, 1730-1799
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Carradine, Keith, 1949-
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Purcell, Edward M.
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Paul Buyer - CC BY-SA 3.0
Rolland, Paul
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C.M. Stieglitz, World Telegram staff photographer - Public Domain
Moses, Robert, 1888-1981
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Grimm, Herman Friedrich, 1828-1901
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Mezzotint by S. W. Reynolds, 1838, after Joshua Reynolds (1723 – 1792) - Public Domain
Mudge, John, 1721-1793
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Holifield, Chet 1903-
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Enghien, Louis-Antoine-Henri de Bourbon, duc d', 1772-1804
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Reichenbach, H.G. (Heinrich Gustav), 1824-1889
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Rais, Gilles de 1404-1440
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Brady-Handy Photograph Collection (Library of Congress) - Public Domain
Raum, Green B. (Green Berry), 1829-1909
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unknown -
Benrubi, I. (Isaak), 1876-1943
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Krylenko, N. V. (Nikolaĭ Vasilʹevich), 1885-1938
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Ferrer, Mel
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Dumas, Alexandre, 1802-1870
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Proyecto Historiador 2 - CC BY-SA 3.0
Kinsey, Alfred C. (Alfred Charles), 1894-1956
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Rateau, Armand-Albert, 1882-1938
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Villard, Henry, 1835-1900
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ManArray - CC BY 3.0
Snow, Michael, 1929-....
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U.S House of Representatives Photographer - Public Domain
Raskin, Jamin B. (Jamin Ben), 1962-
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part of Brady-Handy Photograph Collection (Library of Congress). - Public Domain
Fenn, S. S. (Stephen Southmyd), 1820-1892
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Suffolk and Berkshire, Henry Howard, Earl of, 1739-1779
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Google - Public Domain
Loras, Mathias, 1792-1858
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unknown - Public Domain
Matsudaira, Yoritsuné
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Dee, John, 1527-1608