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Anonymous - Public Domain
Gottlob Wilhelm Morff (1771–1857) - Public Domain
unknown - Public Domain
blackpast.org - Public Domain
George G. Bain - Public Domain
Laura Kolb - CC BY 2.0
Georges Biard - CC BY-SA 3.0
Tereza Samková - CC BY 3.0
Public Domain
John Singer Sargent - Public Domain
Hobhouse, Leonard Trelawney; Hammond, John Lawrence. Photo by Fraddell and Young - Public Domain
Hubertl - CC BY-SA 4.0
original uploader - Public Domain
Gage Skidmore - CC BY-SA 3.0
Frederik Johannes Gottfried Klem (1823–1895) - Public Domain
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Goldoni, Carlo, 1707-1793
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Anonymous - Public Domain
Monk, James, Sir, 1745?-1826
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Jones, Robert T. (Robert Thomas), 1910-1999
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Gottlob Wilhelm Morff (1771–1857) - Public Domain
Uhland, Ludwig, 1787-1862
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unknown - Public Domain
Marshall, Thomas Francis, 1801-1864
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unknown - Public Domain
Ballivián, Adolfo, 1831-1873
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Bronkhorst, Johannes, 1648-1727.
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Gaal, Franciska, 1904-1972
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blackpast.org - Public Domain
Sklarek, Norma, 1928-
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Smith, Erastus, 1787-1837
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Beilstein, Friedrich Konrad, 1838-1906
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George G. Bain - Public Domain
Carter, William H. (William Harding), 1851-1925
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Kimberly, Louis Ashfield, 1830-1902
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Obolensky, Serge
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Laura Kolb - CC BY 2.0
Cohn, Al
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unknown - Public Domain
Anderson, George Burgwyn, 1831-1862
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unknown - Public Domain
Chapman, Frank M. (Frank Michler), 1864-1945
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Anonymous - Public Domain
Sadoul, Georges, 1904-1967
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Georges Biard - CC BY-SA 3.0
Clerc, Julien, 1947-....
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Tereza Samková - CC BY 3.0
Grzimek, Michael, 1934-1959
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Herz, Juraj, 1934-....
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Public Domain
Krushelʹnyt︠s︡ʹka, Solomii︠a︡ Amvrosiïvna 1872-1952
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John Singer Sargent - Public Domain
Brooks, Peter Chardon, 1767-1849
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Hobhouse, Leonard Trelawney; Hammond, John Lawrence. Photo by Fraddell and Young - Public Domain
Hobhouse, Arthur Hobhouse, Baron, 1819-1904
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Hubertl - CC BY-SA 4.0
Zimmermann, Robert, 1824-1898
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Vassar, Matthew, 1792-1868
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original uploader - Public Domain
Platter, Félix (1536-1614).
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Gage Skidmore - CC BY-SA 3.0
Lang, Stephen, 1952-....
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Herkimer, Nicholas, 1728-1777
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Frederik Johannes Gottfried Klem (1823–1895) - Public Domain
Heiberg, Hjalmar, 1837-1897