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unknown - Public Domain
Mahé - CC BY-SA 3.0
shakko - CC BY-SA 3.0
Thomas Cranfield, published by Mason & Co - Public Domain
Daderot - CC0 1.0
Columbia Pictures -
Lopezda -
Not stated - Public Domain
Library of Congress: Hannah G. Solomon Papers - Public Domain
Arnold Genthe - Public Domain
Rémi Mathis - CC BY-SA 3.0
Robert White (engraver) - Public Domain
Luke Wroblewski - CC BY-SA 2.0
Taken by Katriel Cohn-Gordon - Public Domain
Stefan Krause, Stf - Public Domain
*:File:Cardinal_MacRory_October_7,_1930.jpg - Public Domain
Knight Foundation - CC BY-SA 2.0
Brady-Handy Photograph Collection (Library of Congress) - Public Domain
Unattributed - Public Domain
Georges Biard - CC BY-SA 3.0
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Hünefeld, E. G. (Ehrenfried Günther), Freiherr von, 1892-1929
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Audubon, John James, 1785-1851
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Sarabhai, Vikram A., 1919-1971
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unknown - Public Domain
Binet, Jacques Philippe Marie 1786-1856
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Mahé - CC BY-SA 3.0
Glenmor
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Florence, Hércules 1804-1879
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Arens, Moshe
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North, Roger, 1651-1734
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Salvador, Henri, 1917-2008
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shakko - CC BY-SA 3.0
Isócrates
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Thomas Cranfield, published by Mason & Co - Public Domain
Carlisle, George William Frederick Howard, Earl of, 1802-1864
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Daderot - CC0 1.0
Fairbanks, E. (Erastus), 1792-1864
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Columbia Pictures -
Hobbes, Halliwell, 1877-1962
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Lopezda -
Kernberg, Otto F., 1928-....
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Not stated - Public Domain
Reade, Charles, 1814-1884
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Library of Congress: Hannah G. Solomon Papers - Public Domain
Solomon, Hannah G. (Hannah Greenebaum), 1858-1942
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Hatch, Orrin, 1934-
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Widnall, William B. (William Beck), 1906-1983
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Arnold Genthe - Public Domain
Buck, Pearl S. (Pearl Sydenstricker), 1892-1973
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Rémi Mathis - CC BY-SA 3.0
Pâris, Paulin, 1800-1881
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Alexander VI, Pope, 1431-1503
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Robert White (engraver) - Public Domain
Sharp, John, 1645-1714
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Luke Wroblewski - CC BY-SA 2.0
Lloyd, Charles, 1938-....
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Taken by Katriel Cohn-Gordon - Public Domain
Gordon, Michael J.C., 1948-
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Stefan Krause, Stf - Public Domain
Laube, Heinrich, 1806-1884
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*:File:Cardinal_MacRory_October_7,_1930.jpg - Public Domain
MacRory, Joseph, 1861-1945
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Knight Foundation - CC BY-SA 2.0
Heiferman, Marvin
Image from Wikimedia Commons
Brady-Handy Photograph Collection (Library of Congress) - Public Domain
Williams, Jeremiah Norman, 1829-1915
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Unattributed - Public Domain
Viñes, Ricardo 1875-1943
Image from Wikimedia Commons
Georges Biard - CC BY-SA 3.0
Léonard, Herbert 1946-