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Aldasilva - CC BY 3.0
Public Domain
unknown - Public Domain
Joseph F. Merrill - Public Domain
William F. Gilchrest - Public Domain
original uploader - CC BY-SA 2.5
US Government Printing Office - Public Domain
Eva Rinaldi - CC BY-SA 2.0
The Heart Truth - Public Domain
Estrella Díaz - Public Domain
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Aldasilva - CC BY 3.0
Zimler, Richard
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Public Domain
Sheldon, E. A. (Edward Austin), 1823-1897
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unknown - Public Domain
Brialmont, Alexis Henri, 1821-1903
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Kessler, J. C. (Joseph Christoph), 1800-1872
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Hale, James Tracy, 1810-1865
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Angelus, Muriel, 1909-2004
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Joseph F. Merrill - Public Domain
Merrill, Joseph F.
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William F. Gilchrest - Public Domain
Le Moyne, Wm. J. (William J.), 1831-1905
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unknown - Public Domain
Kohut, Alexander, 1842-1894
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original uploader - CC BY-SA 2.5
Lamb, Matt, 1932-2012
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Schell, Orville
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Cavaignac, Godefroy, 1853-1905
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Velluti, Giovanni Battista, 1781-1861
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US Government Printing Office - Public Domain
Holtzman, Lester, 1913-2002
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Eva Rinaldi - CC BY-SA 2.0
Kelly, Laura Michelle
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Grimm, Hans, 1875-1959
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Gabriel de Borbón, Infante of Spain, 1752-1788
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Purdom, Tom
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The Heart Truth - Public Domain
Johnson, Beverly
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Jones, Orlando, 1968-
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Thomas, Dave, 1949-
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Agrell, Johan, 1701-1765
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Estrella Díaz - Public Domain
Quiñones, Samuel R.
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unknown - Public Domain
Lewis, Joseph Horace, 1824-1904
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Eyring, Henry, 1838-1902
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Adrian, Edgar Douglas Adrian, Baron, 1889-1977
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La Villemarqué, Théodore Hersart, vicomte de, 1815-1895
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Fields, Herbie, 1919-1958
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Hitchcock, Peter, 1781-1853
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Finlay, Carlos Juan 1833-1915