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John Thaxter - CC BY-SA 3.0
Eriotac - CC BY-SA 4.0
unknown - Public Domain
The Library of Congress -
Original uploader was :it:Frieda -
original uploader - CC BY 2.5
Josef Maria Grassi - Public Domain
Lucy Hill Crump - Public Domain
Engraved by C. Cook from a drawing by Maurir[http://ihm.nlm.nih.gov/images/B04579] - Public Domain
Krehbiel, Henry Edward, 1854-1923 -
Bain - Public Domain
Charles Bird King and Thomas Sully, deceased. Photographs of the portraits by R Tayloe Cook - CC0 1.0
Chairman of the Joint Chiefs of Staff - Public Domain
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Gross, Ernest A. (Ernest Arnold), 1906-1999
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John Thaxter - CC BY-SA 3.0
Bloom, Claire, 1931-....
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Debye, Peter J. W. (Peter Josef William), 1884-1966
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Anania, Valeriu.
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Eriotac - CC BY-SA 4.0
Curtil, Emmanuel, 1971-
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Grétry, André-Ernest-Modeste
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Demarczyk, Ewa
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O'Brien, Richard, 1942-....
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Anfinsen, Christian B. (Christian Boehmer), 1916-1995
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unknown - Public Domain
Craig, Elijah, 1738-1808
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The Library of Congress -
Smith, Tab, 1909-1971
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unknown - Public Domain
Sears, David, 1787-1871
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Original uploader was :it:Frieda -
Donatello, 1386?-1466
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Miller, Frank Justus
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original uploader - CC BY 2.5
Terry, Sonny
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Josef Maria Grassi - Public Domain
Lindenau, Bernhard August von 1779-1854
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Lucy Hill Crump - Public Domain
Hill, George Birkbeck Norman, 1835-1903
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Engraved by C. Cook from a drawing by Maurir[http://ihm.nlm.nih.gov/images/B04579] - Public Domain
Chevreul, M. E. (Michel Eugène), 1786-1889
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Krehbiel, Henry Edward, 1854-1923 -
Bodanzky, Artur, 1877-1939
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Bain - Public Domain
Witherspoon, Herbert, 1873-1935
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Remitti, Cheikha, 1923-2006
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Grovlez, Gabriel
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Charles Bird King and Thomas Sully, deceased. Photographs of the portraits by R Tayloe Cook - CC0 1.0
Tayloe, Benjamin Ogle, 1796-1868
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Drew, John, 1853-1927
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Amir, Aharon, 1923-2008
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Story, William Edward, 1850-1930
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Chairman of the Joint Chiefs of Staff - Public Domain
Letterman, David
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Beck, James M. (James Montgomery), 1861-1936
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Purdom, Tom
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unknown - Public Domain
Cos, Martín Perfecto de, 1800-1854