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David Shankbone - CC BY 3.0
Contemporary portrait - Public Domain
Naamash155 - CC BY-SA 3.0
Alexandra Studios (Toronto): Louis or Nathan Turofsky, Roy Mitchell or Hal Crellin - Public Domain
Public Domain
Nathaniel Bartlett Sylvester - Public Domain
unknown - Public Domain
:en:United States Court of Appeals for the Sixth Circuit - Public Domain
FrankieF - CC BY-SA 4.0
Unknown -
Mwadley - CC BY-SA 3.0
Chad Laytham - CC BY 3.0
United States Commission on Religious Freedom - Public Domain
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Original uploader was Algabal - Public Domain
Wither, George, 1588-1667
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David Shankbone - CC BY 3.0
Reid, Christopher, 1964-
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Sabatier, Auguste, 1839-1901
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Nees von Esenbeck, C. G. (Christian Gottfried), 1776-1858
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Contemporary portrait - Public Domain
Williams, William, 1717-1791
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Naamash155 - CC BY-SA 3.0
Rotenstreich, Nathan, 1914-1993
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Alexandra Studios (Toronto): Louis or Nathan Turofsky, Roy Mitchell or Hal Crellin - Public Domain
Oakes, Harry, Sir, 1874-1943
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Maupin, Armistead
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Hagedorn, Friedrich von 1708-1754
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Doucet, Michael
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Selye, Hans, 1907-1982
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Public Domain
Russell, John E. (John Edwards), 1834-1903
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Nathaniel Bartlett Sylvester - Public Domain
Kenyon, William Scheuneman, 1820-1896
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unknown - Public Domain
Stapfer, Paul, 1840-1917
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León, Hebreo, approximately 1460-
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:en:United States Court of Appeals for the Sixth Circuit - Public Domain
Boggs, Danny Julian, 1944-
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Hönl, Helmut 1903-1981
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Marsh, Edward Howard, Sir, 1872-1953
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Farrell, Glenda, 1904-1971
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Wrong, Humphrey Hume, 1894-1954
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FrankieF - CC BY-SA 4.0
Pollak, Kay, 1938-....
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Gibran, Kahlil, 1883-1931
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Agar, John Samuel
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Unknown -
Novák, Arne, 1880-1939
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Mwadley - CC BY-SA 3.0
Rice, Justin
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Volkmann, Richard von. (1830-1889).
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Chad Laytham - CC BY 3.0
Smith, Willie, 1936-2011
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Nollet, abbé (Jean Antoine), 1700-1770
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Nevius, John L. (John Livingston), 1829-1893
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United States Commission on Religious Freedom - Public Domain
Land, Richard D.