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Georges Biard - CC BY-SA 3.0
Center for Disease Control and Prevention's Public Health Image Library (PHIL), cropped by Bemoeial2 - Public Domain
nvt - Public Domain
unknown photographer -
Alessandro Molin Brosa - CC BY-SA 3.0
unknown - Public Domain
Bain - Public Domain
Pierre Petit - Public Domain
Catriona Sparks - CC BY 2.0
US Government Printing Office - Public Domain
U.S. Government Printing Office. - Public Domain
Julius Schaarwächter - Public Domain
Long Island University - Public Domain
anonymous/unknown - Public Domain
Medjeded - CC BY-SA 3.0
MSgt Paul Gorman - Public Domain
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Lawrence, Marjorie
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Gill, Irving, 1870-1936
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Georges Biard - CC BY-SA 3.0
Abril, Victoria
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Anderson, Mary, 1872-1964
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Center for Disease Control and Prevention's Public Health Image Library (PHIL), cropped by Bemoeial2 - Public Domain
Black, G. V. (Greene Vardiman), 1836-1915
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nvt - Public Domain
Rooses, Max, 1839-1914
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unknown photographer -
Denison, William, Sir, 1804-1871
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Alessandro Molin Brosa - CC BY-SA 3.0
Clemer, Johannes, active 1494-1515
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Byrnes, Thomas, 1842-1910
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Rust, Friedrich Wilhelm, 1739-1796
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Canova, Judy, 1913-1983
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Williams, Helen Maria, 1762-1827
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Horan, Walter Franklin, 1898-1966
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unknown - Public Domain
Richard, Timothy, 1845-1919
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Bain - Public Domain
Ellis, Mary, 1900-2003
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Pierre Petit - Public Domain
Lamoureux, Charles, 1834-1899
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Catriona Sparks - CC BY 2.0
Forsyth, Kate, 1966-
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US Government Printing Office - Public Domain
Edgar, Robert, 1943-2013
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Romero, Óscar A. (Óscar Arnulfo), 1917-1980
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U.S. Government Printing Office. - Public Domain
Stalbaum, Lynn E. (Lynn Ellsworth), 1920-1999
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Julius Schaarwächter - Public Domain
Carreño, Teresa, 1853-1917
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Long Island University - Public Domain
Lingard, Wm. Horace (William Horace), 1839-1927
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anonymous/unknown - Public Domain
Lewandowski, Louis, 1821-1894
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Stern, Isaac, 1920-2001.
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Budberg, Andreĭ Fedorovich, baron, 1817-1881
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unknown - Public Domain
Busch, Adolphus
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Gillet, C.C. (Claude-Casimir), 1806-1896
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Medjeded - CC BY-SA 3.0
Chouikh, Mohamed, 1943-....
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unknown - Public Domain
Brongniart, Ch. (Charles), 1859-1899
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MSgt Paul Gorman - Public Domain
Doyle, James E.