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unknown - Public Domain
File photo, scanned and colorized by Tim Davenport - Public Domain
Jacob HoubrakenJan Maurits Quinkhard - Public Domain
Onehandclapping - CC BY-SA 3.0
unknown/pseudonymous - Public Domain
Public Domain
Mathew Brady Levin Corot Handy - Public Domain
English School - Public Domain
Timothy M. Moore - CC BY 3.0
Henri-Gabriel Ibels - Public Domain
Nadya Peek - CC BY 2.0
RJCook - CC BY-SA 4.0
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unknown - Public Domain
Gray, James M. (James Martin), 1851-1935
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unknown - Public Domain
Lishansky, Joseph, 1890-1917
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unknown - Public Domain
Smetana, Bedřich, 1824-1884
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File photo, scanned and colorized by Tim Davenport - Public Domain
Browder, Earl, 1891-1973
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Affleck, Ben, 1972-....
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Mundy, Francis Noel Clarke, 1738 or 1739-1815
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Bergmann, Frithjof
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Jacob HoubrakenJan Maurits Quinkhard - Public Domain
Drakenborch, Arnold, 1684-1748
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King, Clarence, 1842-1901
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Pearson, Richmond, 1852-1923
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Van Flandern, Tom, 1940-2009
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Belka, Marek
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Cromwell, Thomas, Earl of Essex, 1485?-1540
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Onehandclapping - CC BY-SA 3.0
Hollo, Anselm.
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unknown/pseudonymous - Public Domain
Loeb, Jacques, 1859-1924
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Public Domain
Cotton, Evan, 1868-1939
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Palmer, J. Hinde (John Hinde), 1808-1884
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Maceda, José
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Bolton, Sarah T. (Sarah Tittle), 1814-1893
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Mathew Brady Levin Corot Handy - Public Domain
Rice, Benjamin Franklin, 1828-1905
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Gian Gastone, Grand Duke of Tuscany, 1671-1737
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English School - Public Domain
North, Edward North, Baron, 1496?-1564
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Timothy M. Moore - CC BY 3.0
Murphy, Charlie, 1959-
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Henri-Gabriel Ibels - Public Domain
Ibels, Henri-Gabriel, 1867-1936
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Ralston, William Chapman, 1826-1875
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Public Domain
Grayson, William, 1736-1790
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unknown - Public Domain
Kendal, Madge, 1849-1935
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Israel Meir, ha-Kohen, 1838-1933
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Nadya Peek - CC BY 2.0
Gallo, Vincent, 1961-
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RJCook - CC BY-SA 4.0
Henry, Sean, 1965-....