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George Grantham Bain Collection (Library of Congress) - Public Domain
unknown - Public Domain
Contemporary portrait - Public Domain
http://en.wikipedia.org/wiki/Janke - CC BY-SA 3.0
unknown -
Michaël Bemelmans - CC BY-SA 4.0
George Adam Smith - Public Domain
user at project - CC BY-SA 2.5
Unknown, possibly a self portrait - Public Domain
Enerelt - CC BY 3.0
Public Domain
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George Grantham Bain Collection (Library of Congress) - Public Domain
Ugarte, Manuel, 1878-1951
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Griest, William Walton, 1859-1929
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unknown - Public Domain
Wilamowitz-Moellendorff, Ulrich von 1848-1931
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Jean-Baptiste Annibal Aubert du Bayet
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Levi, Hermann, 1839-1900
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Hall, J.L. (John L.), 1934-
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Ruppersberg, Allen 1944-
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Smith, Silas Sanford, 1830-1910
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Butterfield, James A., 1837-1891
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Contemporary portrait - Public Domain
Lloyd, William, 1627-1717
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http://en.wikipedia.org/wiki/Janke - CC BY-SA 3.0
Thomas, Frank, 1912?-2004
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Rauch, Christian Daniel, 1777-1857
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Oehlenschläger, Adam, 1779-1850
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Selig, William N.
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Clark, Alvan Graham, 1832-1897
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unknown -
Rozwadowski, Tadeusz Jordan
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Lopat, Ed, 1918-1992
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Estimé, Dumarsais, 1900-1953
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Michaël Bemelmans - CC BY-SA 4.0
Lanoux, Victor, 1936-....
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Adams, Kathryn, 1894-1959
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George Adam Smith - Public Domain
Drummond, Henry, 1851-1897
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user at project - CC BY-SA 2.5
McKechnie, Donna
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Unknown, possibly a self portrait - Public Domain
Watson, Edith S., 1861-1943
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Enerelt - CC BY 3.0
Weatherford, J. McIver.
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Lyssy, Rolf, 1936-
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unknown - Public Domain
Claus, Daniel, 1727-1787
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Public Domain
Baluze, Étienne, 1630-1718
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Masters, Robert, 1713-1798
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Giraud, Albert, 1860-1929
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Graves, Robert-James, 1796-1853