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The Field Museum in Chicago - Public Domain
Paulus Pontius - Public Domain
David Carroll - CC BY 2.0
Philip Allfrey - CC BY-SA 2.5
anonymous (Adolf Eckstein's verlag) - Public Domain
University of Manchester Library - Public Domain
e-wv The West Virginia Encyclopedia - Public Domain
unknown - Public Domain
Jere Keys -
Lisa G Bauer - CC BY 2.0
SMU Central University Libraries -
Historical and Public Figures Collection - Public Domain
Vogler - CC BY-SA 4.0
Public Domain
Friedrich Wilhelm Nettling - Public Domain
US Government Printing Office - Public Domain
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Child, Richard Washburn, 1881-1935
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Searle, Ronald, 1920-2011
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The Field Museum in Chicago - Public Domain
Riggs, Elmer S., 1869-1963
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Smith, Dave, 1942-
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Paulus Pontius - Public Domain
Le Mire, Aubert, 1573-1640
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David Carroll - CC BY 2.0
Starr, Kinnie
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Philip Allfrey - CC BY-SA 2.5
Chesshyre, D. H. B.
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anonymous (Adolf Eckstein's verlag) - Public Domain
Grocco, Pietro, 1856-1916
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University of Manchester Library - Public Domain
Taylor, John Edward, 1791-1844
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e-wv The West Virginia Encyclopedia - Public Domain
Holt, Homer Adams, 1898-1975
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unknown - Public Domain
Jepson, Willis Linn, 1867-1946
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Jere Keys -
Neumeier, Edward.
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Firth, Colin, 1960-....
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Lisa G Bauer - CC BY 2.0
Paulus, Stephen
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SMU Central University Libraries -
McCarthy, Carlton, 1847-1936
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Historical and Public Figures Collection - Public Domain
Sarcey, Francisque, 1827-1899
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Vogler - CC BY-SA 4.0
Armstrong, Karen, 1944-....
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Purnell, Fred S. (Fred Sampson), 1882-1939
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Lievens, Jan, 1607-1674
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Dupaty, Emmanuel, 1775-1851
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Public Domain
Watson, Hewett Cottrell, 1804-1881
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Friedrich Wilhelm Nettling - Public Domain
Hildebrandt, Georg Friedrich, 1764-1816
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Mondino, Aldo, 1938-2005
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Jommelli, Nicoló, 1714-1774
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Culpeper, Nicholas, 1616-1654
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US Government Printing Office - Public Domain
Beach, Lewis, 1835-1886
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MacSwiney, Terence J. (Terence Joseph), 1879-1920
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Medina, Angel.
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unknown - Public Domain
Byrne, James Aloysius, 1906-1980
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Gerstmann, Josef, 1887-1969