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Slowking4 -
Unknown (Bain News Service, publisher) - Public Domain
unknown - Public Domain
see above; the author of photograph and lithographer were uncredited - Public Domain
lifescript - CC BY 2.0
Voiceperson - CC BY-SA 3.0
Philipp Petri - Public Domain
Charles Reutlinger, b.1816 - Public Domain
unknown - CC0 1.0
Jiyang Chen -
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Slowking4 -
Schwartz, Lloyd, 1941-....
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Unknown (Bain News Service, publisher) - Public Domain
Hofmann, Josef, 1876-1957
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Dayton, William L. (William Lewis), 1807-1864
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Chase, Owen
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Kuchel, Thomas H.
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Hanski, Ilkka
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unknown - Public Domain
Williams, Benjamin, 1751-1814
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see above; the author of photograph and lithographer were uncredited - Public Domain
Althaus, Julius, 1833-1900
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lifescript - CC BY 2.0
Streisand, Barbra
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Widney, R. M. (Robert Maclay), 1838-1929
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Lewis, Henry
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Voiceperson - CC BY-SA 3.0
Nixon, Marni
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Aeschines
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Philipp Petri - Public Domain
Leutsch, Ernst von, 1808-1887
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unknown - Public Domain
Walker, Mary Edwards, 1832-1919
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Spohr, Louis, 1784-1859
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Flexner, Abraham, 1866-1959
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Wharton, Philip Wharton, Baron, 1613-1696
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Thomas, Christopher Yancy, 1818-1879
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Passini, Johann Ludwig, 1832-1903
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Simmons, Gustavus J.
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Herzog, Herman, 1831-1932
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Arnold, Lemuel Hastings, 1792-1852
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unknown - Public Domain
Gaines, Myra Clark, 1805-1885
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unknown - Public Domain
Darke, William, 1736-1801
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Gurney, Jeremiah, 1812-1895
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Charles Reutlinger, b.1816 - Public Domain
Fizeau, H. (Hippolyte), 1819-1896
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unknown - CC0 1.0
Elwes, John, 1714-1789
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Jiyang Chen -
Brendel, Alfred
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unknown - Public Domain
Chen, Lifu, 1900-2001