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unknown; portrait made before 1752 - Public Domain
David Shankbone - CC BY-SA 3.0
unknown - Public Domain
Public Domain
original uploader - Public Domain
Brain19 - CC BY-SA 3.0
Gage Skidmore - CC BY-SA 3.0
anon - Public Domain
Andy Newcombe - CC BY-SA 2.0
Plainsense - CC BY-SA 3.0
Sasoriza / Bryan Chan - CC BY-SA 2.0
Michael Vandergucht - Public Domain
Iaconianni family -
Nick-D - CC BY-SA 4.0
D. O. Hill - Public Domain
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unknown; portrait made before 1752 - Public Domain
Lamerie, Paul de 1688-1751
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David Shankbone - CC BY-SA 3.0
Phillips, Carl, 1959-
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unknown - Public Domain
Howe, Frederic C., 1867-1940
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Public Domain
Gunther, C. Godfrey (Charles Godfrey), 1822-1885
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original uploader - Public Domain
Martin, Thomas S. (Thomas Staples), 1847-1919
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Brain19 - CC BY-SA 3.0
Hutchinson, Eric, 1980-
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Gage Skidmore - CC BY-SA 3.0
Burton, Tim, 1958-....
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unknown - Public Domain
Jiang, Wenye, 1910-1983
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anon - Public Domain
Stickney, William W. (William Wallace), 1853-1932
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Andy Newcombe - CC BY-SA 2.0
Kaiser, Henry
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Thouin, André, 1747-1824
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Vanderpoel, Aaron, 1799-1870
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Plainsense - CC BY-SA 3.0
Whittle, Stephen, 1955-....
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Blumenthal, Florence, -1930
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Sasoriza / Bryan Chan - CC BY-SA 2.0
Hung, Samo, 1952-
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Akenside, Mark, 1721-1770
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Michael Vandergucht - Public Domain
Creech, Thomas, 1659-1700
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Harris, Ed, 1950-....
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Iaconianni family -
Baraldini, Silvia, 1947-
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Andy Newcombe - CC BY-SA 2.0
Zorn, John, 1953-....
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unknown - Public Domain
Ives, Brayton, 1840-1914
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Remitti, Cheikha, 1923-2006
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Chirikov, E. N. (Evgeniĭ Nikolaevich), 1864-1932
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Houellebecq, Michel
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Nick-D - CC BY-SA 4.0
Gunn, Ronald Campbell, 1808-1881
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D. O. Hill - Public Domain
Grose, Francis, 1731?-1791
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Alberti, Cherubino, 1553-1615
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Public Domain
Hovey, Alvin P. (Alvin Peterson), 1821-1891
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Wordsworth, Charles, 1806-1892
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Keller, Albert von 1844-1920