Image from Wikimedia Commons
Christopher Okigbo - CC0 1.0
Thomas Good - CC BY-SA 3.0
Photographer-Maurice Seymour, Chicago. - Public Domain
Tilden, Douglas - Public Domain
Arthur Conan Doyle - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Jonathunder -
Bain News Service - Public Domain
Jay Godwin - Public Domain
United States Steel Corporation, the show's sponsor. - Public Domain
Orientalist - CC BY-SA 3.0
unknown - Public Domain
Copyrighted to Underwood & Underwood in 1922. - Public Domain
Nadar - Public Domain
Public Domain
Anthony22 - CC BY-SA 3.0
Image from Wikimedia Commons
Christopher Okigbo - CC0 1.0
Okigbo, Christopher, 1932-1967
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Macklin, Charles, 1697?-1797
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Thomas Good - CC BY-SA 3.0
McReynolds, David, 1929-....
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Photographer-Maurice Seymour, Chicago. - Public Domain
Peabody, Eddie, approximately 1901-1970
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Livingston, Ron
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Foss, George Edmund, 1863-1936
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Barnsdall, Aline, 1882-1946
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Lonardi, Eduardo, 1896-1956
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Tilden, Douglas - Public Domain
Tilden, Douglas, 1860-1935
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Brewster, David, 1781-1868
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Arthur Conan Doyle - Public Domain
Leonard, Gladys Osborne 1882-1968
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George Grantham Bain Collection (Library of Congress) - Public Domain
Barrett, Kate Waller, 1858-1925
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Jonathunder -
Keillor, Steven J. (Steven James)
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Sage, Henry W. (Henry Williams), 1814-1897
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Pearson, Virginia, 1886-1958
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Bain News Service - Public Domain
Lawrence, William, 1850-1941
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Jay Godwin - Public Domain
Barnes, Ben F., 1938-....
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United States Steel Corporation, the show's sponsor. - Public Domain
Vanderbilt, Gloria, 1924-....
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Warhaftig, Zorach, 1906-....
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Orientalist - CC BY-SA 3.0
Jammāʻīlī, ʻAbd al-Ghanī ibn ʻAbd al-Wāḥid, 1146-1203
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Crookes, William, 1832-1919
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Phelps, William F. (William Franklin), 1822-1907
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Just, Ward S.
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Tryon, Dwight William, 1849-1925
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unknown - Public Domain
Sanquirico, Alessandro, 1777-1849
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Copyrighted to Underwood & Underwood in 1922. - Public Domain
Briggs, Clare A., 1875-1930
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Judd, A. F. (Albert Francis), 1874-1939
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Nadar - Public Domain
Geffroy, Gustave, 1855-1926
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Public Domain
Mercier, Auguste, 1833-1921
Image from Wikimedia Commons
Anthony22 - CC BY-SA 3.0
Saltus, Francis Saltus, 1849-1889