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From the 1882 book "Public Men of To-day" by Phineas Camp Headley - Public Domain
National Photo Company - Public Domain
unknown - Public Domain
Agence Rol. Agence photographique - Public Domain
Federal Bureau of Investigation - Public Domain
U.S. Army - Public Domain
Jan Neuman (1900-1941) - Public Domain
unknown photographer - Public Domain
Ramon Casas -
scillystuff - CC BY-SA 3.0
Thomas Gibson - Public Domain
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From the 1882 book "Public Men of To-day" by Phineas Camp Headley - Public Domain
Briggs, James F. (James Frankland), 1827-1905
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Bianchi, F. (Francesco), approximately 1752-1810
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National Photo Company - Public Domain
Ernst, Richard Pretlow, 1858-1934
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Delille, Jacques, 1738-1813
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unknown - Public Domain
König, Samuel, 1712-1757
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unknown - Public Domain
Lemaître, Jules, 1853-1914
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Cromwell, James H. R. (James Henry Roberts), 1896-
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Ensler, Eve, 1953-....
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Agence Rol. Agence photographique - Public Domain
Foster, George E. (George Eulas), Sir, 1847-1931
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Federal Bureau of Investigation - Public Domain
Murphy, Timothy P.
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Oborin, Lev, 1907-1974
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unknown - Public Domain
Lotichius, Petrus, 1528-1560
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U.S. Army - Public Domain
Quinn, William W. (William Wilson), 1907-2000
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Sneh, Ephraim, 1944-....
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Jan Neuman (1900-1941) - Public Domain
Rosen, Jan Henryk (1891-1982).
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Cuvier, Georges, baron, 1769-1832
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unknown photographer - Public Domain
Reynolds, William Thomas, 1823-1899
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Cambon, Joseph, 1756-1820
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Rivadavia, Bernardino, 1780-1845
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Bowell, Mackenzie, Sir, 1823-1917
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Ramon Casas -
Clará, José, 1878-1958
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scillystuff - CC BY-SA 3.0
Cojocaru, Alina, 1981-
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Thomas Gibson - Public Domain
Wager, Charles, Sir, 1666-1743
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Hawke, Bob, 1929-
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Kotler, Oded, 1937-
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unknown - Public Domain
Webster, Thomas, 1800-1886
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Majors, Alexander, 1814-1900
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Victors, Jan, 1619-1676
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Landini, Francesco, approximately 1325-1397
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Hirschfeld, Kurt, 1902-