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Engraved by Thomas Woolnoth from National Portrait Gallery by Abraham Wivell -
Ellen Kurath - CC BY-SA 3.0
William Cochrane (1831-1898) and John Castell Hopkins (1864-1923) - Public Domain
August Kneisel - Public Domain
anonimous - Public Domain
original uploader - CC BY-SA 2.0
unknown - Public Domain
Bunks - CC BY-SA 3.0
French school of the 18th century - Public Domain
Public Domain
Antonio Martechini - Public Domain
Thomas Lafferty - CC BY-SA 3.0
William Wallace Blair<br>Compiled by: Frederick B. Blair - Public Domain
Moshe Pridan - Public Domain
Zell von Zell - CC BY-SA 4.0
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Niel, Adolphe, 1802-1869
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Roe, Francis Asbury, 1823-1901
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Engraved by Thomas Woolnoth from National Portrait Gallery by Abraham Wivell -
Aberdeen, George Hamilton Gordon, Earl of, 1784-1860
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Ellen Kurath - CC BY-SA 3.0
Kurath, Gertrude Prokosch.
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William Cochrane (1831-1898) and John Castell Hopkins (1864-1923) - Public Domain
Boyd, J. A. (John Alexander), 1837-1916
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August Kneisel - Public Domain
Gruber, J. G. (Johann Gottfried), 1774-1851
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anonimous - Public Domain
Severus, of Antioch, approximately 465-538
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Schwartz, Henry Herman, 1869-1955
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original uploader - CC BY-SA 2.0
Chang, Iris
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unknown - Public Domain
Zeevy, Rechavam, 1926-2001
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Klare, George R. (George Roger), 1922-
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Matheson, Scott
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Bunks - CC BY-SA 3.0
Malangatana, 1936-2011
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French school of the 18th century - Public Domain
Berthier, Jean-Baptiste 1721-1804
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Public Domain
Blaz, Ben, 1928-2014
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Antonio Martechini - Public Domain
Gradić, Stjepan, 1613-1683
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Stevenson, Sarah Hackett, 1843-1909
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Orton, James, 1830-1877
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Karimov, I. A., 1938-
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Helmholtz, Hermann von 1821-1894
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Thomas Lafferty - CC BY-SA 3.0
Faurer, Louis, 1916-2001
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unknown - Public Domain
Bāb, ʻAlī Muḥammad Shīrāzī, 1819-1850
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Sanda, Dominique, 1948-
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William Wallace Blair<br>Compiled by: Frederick B. Blair - Public Domain
Blair, W. W. (William Wallace), 1828-1896
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Public Domain
Sumner, George, Mrs., 1828-1921
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Lehrs, Max, 1855-1938
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Moshe Pridan - Public Domain
Levitt, Arthur, 1900-1980
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Zell von Zell - CC BY-SA 4.0
Lundberg, Ferdinand, 1902-
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Beauclerk, Topham, 1739-1780
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Zügel, Heinrich von 1850-1941