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unknown - Public Domain
Samuel Dreher Matlack - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Justin Ruckman - CC BY 2.0
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George Grantham Bain Collection (Library of Congress) - Public Domain
Mnent - CC BY-SA 3.0
Giulio Aleni - Public Domain
Unattributed - Public Domain
Bex.Walton - CC BY 2.0
GuentherZ -
KushiInstitute - CC BY 2.0
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Burton, William E. (William Evans), 1802-1860
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unknown - Public Domain
Archer, John, 1741-1810
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Stewart, James, Sir, 1635-1713
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unknown - Public Domain
Olden, Rudolf, 1885-1940
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Collier, William, 1866-1944
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Samuel Dreher Matlack - Public Domain
Gibson, John Bannister, 1780-1853
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Rymer, Michael, 1963-....
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Robertson, J. Ross (John Ross), 1841-1918
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Mathew Brady Levin Corot Handy - Public Domain
Waddell, Alfred M. (Alfred Moore), 1834-1912
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Justin Ruckman - CC BY 2.0
McColl, Hugh L. (Hugh Leon), 1935-
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Koning, Hans, 1921-
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Speer, Albert, 1905-1981
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George Grantham Bain Collection (Library of Congress) - Public Domain
Lovejoy, Esther Pohl, 1870-1967
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Potter, Charles Francis, 1885-1962
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Gallén-Kállela, Akseli (1865-1931).
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Vallerand, Jean, 1915-1994
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Mnent - CC BY-SA 3.0
Braun, Ernest, 1925-
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Silvestre, Armand, 1837-1901
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Townsend, Henry
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Hirsch, Willard Newman, 1905-1982
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Leinster, Emily Fitzgerald, Duchess Of
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Gale, Zona, 1874-1938
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unknown - Public Domain
Wesbrook, F. F. (Frank Fairchild), 1868-1918
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Lederberg, Joshua
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Giulio Aleni - Public Domain
Aleni, Giulio, 1582-1649
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Unattributed - Public Domain
Erben, Henry, 1832-1909
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Bex.Walton - CC BY 2.0
Stone, Emma, 1988-....
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GuentherZ -
Kramer, Theodor, 1897-1958
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Purcell, Henry, 1659-1695
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KushiInstitute - CC BY 2.0
Kushi, Michio