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unknown - Public Domain
AcademiadeMedicina - CC BY-SA 4.0
me - CC BY-SA 3.0
Duluth Central High School - Public Domain
w:Patrick Weston Joyce - Public Domain
Smithsonian Institution -
Mathew Brady - Public Domain
Mike Magee <mike.magee@theinquirer.net> - Public Domain
Office of Governor Tim Pawlenty - CC BY-SA 3.0
sinaloaarchivohistorico -
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unknown - Public Domain
Reye, Theodor, 1838-1919
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unknown - Public Domain
Mol, Leo, 1915-2009
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Thayer, James Bradley, 1831-1902
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AcademiadeMedicina - CC BY-SA 4.0
Anthony, E. James (Elwyn James), 1916-
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Lunt, George, 1803-1885
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Petre, Edward, 1631-1699
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me - CC BY-SA 3.0
Brouwer, Léo 1939-
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Van Zandt, Charles C. (Charles Collins), 1830-1894
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Wu, Tingfang, 1842-1922
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Kraus, Alfredo
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Duluth Central High School - Public Domain
Nance, Ethel Ray, 1899-1992
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Tauber, Richard, 1891-1948
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Hanotaux, Gabriel, 1853-1944
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De la Rey, Koos
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unknown - Public Domain
Philbin, Eugene A. (Eugene Ambrose), 1857-1920
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Libbey, Laura Jean, 1862-1924
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Necochea, Mariano, 1790-1849
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unknown - Public Domain
Arnold, Bion J. (Bion Joseph), 1861-1942
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Read, Clare Sewell, 1826-1905
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w:Patrick Weston Joyce - Public Domain
Joyce, P.W. (Patrick Weston), 1827-1914
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Smithsonian Institution -
Huntington, Anna Hyatt, 1876-1973
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Moore, Lindley M. (Lindley Murray), 1788-1871
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Bustamante, Carlos María de, 1774-1848
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Haislip, Wade H. (Wade Hampton), 1889-1971
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Mathew Brady - Public Domain
Parke, Benjamin, 1777-1835
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Mike Magee <mike.magee@theinquirer.net> - Public Domain
Shannon, Terry C. (Terry Craig), 1952-
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Mitchell, Thomas, 1892-1962
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Hasior, Władysław, 1928-1999
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Office of Governor Tim Pawlenty - CC BY-SA 3.0
Pawlenty, Tim, 1960-....
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sinaloaarchivohistorico -
Díez-Canedo, Enrique, 1879-1944