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Claus Michelfelder - CC BY-SA 3.0
Ron Kroon / Anefo - CC BY-SA 3.0
jebb - CC BY-SA 2.0
unknown - Public Domain
unknown - CC BY 4.0
Devi Prasad -
Anonymous - Public Domain
original uploader - Public Domain
kellywritershouse - CC BY 2.0
Klein & Guttenstein - Public Domain
United States Senate Historical Office - Public Domain
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Claus Michelfelder - CC BY-SA 3.0
Wallace, Bill, 1945-
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Chaffee, Adna Romanza, 1842-1914
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Ron Kroon / Anefo - CC BY-SA 3.0
Baker, Janet, 1933-....
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Veber, Pierre, 1869-1942
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jebb - CC BY-SA 2.0
Murray, Elizabeth, 1940-2007
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Werts, George T. (George Theodore), 1846-1910
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Home, Robert, 1752-1834
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Waitz, Georg, 1813-1886
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unknown - Public Domain
Corning, J. Leonard (James Leonard), 1855-1923
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unknown - CC BY 4.0
Sibson, F. (Francis), 1814-1876
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Devi Prasad -
Ligt, Bart de 1883-1938
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Turner, Charles, 1774-1857
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unknown - Public Domain
Eichhorn, Karl Friedrich, 1781-1854
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Coke, Daniel Parker, 1745-1825
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Anonymous - Public Domain
Houston, Charles Hamilton, 1895-1950
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original uploader - Public Domain
Ord, Edward Otho Cresap, 1818-1883
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Pandolfo, Samuel C., 1874-1960
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Clay, Lucius D. (Lucius DuBignon), 1919-1994
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unknown - Public Domain
Victor, Frances Fuller, 1826-1902
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kellywritershouse - CC BY 2.0
Lennon, J. Robert, 1970-
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Klein & Guttenstein - Public Domain
McWade, Robert, 1872-1938
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Klingenstierna, Samuel, 1698-1765
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Mary, Queen of Scots, 1542-1587
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Podmore, Frank, 1856-1910
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unknown - Public Domain
Nixon, Samuel Frederick, 1860-1905
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United States Senate Historical Office - Public Domain
Proxmire, William
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Ayers, Henry, 1821-1897
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Coppola, Pietro Antonio, 1793-1877
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Mezzofanti, Giuseppe, 1774-1849
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Durand, H. Mortimer (Henry Mortimer), 1850-1924