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White Studios, New York (Bain News Service) - Public Domain
Alan Light - CC BY 2.0
original uploader - Public Domain
unknown - Public Domain
US National Library of Medicine, http://resource.nlm.nih.gov/101436257 . Per US NLB web site: "The National Library of Medicine believes this item to be in the public domain." - Public Domain
Hal Roach - Public Domain
User Gerald Farinas - Public Domain
U.S. Government Printing Office. - Public Domain
The University of North Carolina at Asheville - CC0 1.0
CBS Television - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Jonkman, R.G. / DLC - CC BY-SA 3.0
Henry Inman - Public Domain
Kokorik (Uploader) - Public Domain
:en:Julien Bryan - Public Domain
Sarah Delahousse, Jane Gaines - CC BY-SA 4.0
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Ben-Ner, Yitzhak, 1937-
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White Studios, New York (Bain News Service) - Public Domain
Chalmers, Thomas, 1884-1966
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Alan Light - CC BY 2.0
Newhart, Bob
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Phillips, David Atlee
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Ekelund, Vilhelm, 1880-1949
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original uploader - Public Domain
Newlands, John A. R.
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Wu, Peifu, 1874-1939
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unknown - Public Domain
Lauterbur, Paul C., 1929-2007
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US National Library of Medicine, http://resource.nlm.nih.gov/101436257 . Per US NLB web site: "The National Library of Medicine believes this item to be in the public domain." - Public Domain
Barringer, Emily Dunning, 1876-1961
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Hal Roach - Public Domain
Chase, Charley, 1893-1940
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User Gerald Farinas - Public Domain
Bingham, Hiram, 1875-1956
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U.S. Government Printing Office. - Public Domain
Coffin, Frank M. (Frank Morey), 1919-2009
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Ruzowitzky, Stefan
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The University of North Carolina at Asheville - CC0 1.0
Konner, Melvin
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Roth, Lillian, 1910-1980
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McKelvie, Samuel Roy, 1881-1956
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CBS Television - Public Domain
Karras, Alex
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Mathew Brady Levin Corot Handy - Public Domain
Aiken, David Wyatt, 1828-1887
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Wells, Spencer, 1818-1897
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Jonkman, R.G. / DLC - CC BY-SA 3.0
Brackman, Arnold C.
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Henry Inman - Public Domain
Hoadley, David, 1774-1839
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Kokorik (Uploader) - Public Domain
Jeans, James, 1877-1946
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:en:Julien Bryan - Public Domain
Bryan, Julien Hequembourg
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Pearse, Pádraic (1879-1916).
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Hatcher, Teri
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unknown - Public Domain
Bell, Robert, 1841-1917
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Barton, William P.C. (William Paul Crillon), 1786-1856
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Sarah Delahousse, Jane Gaines - CC BY-SA 4.0
Turnbull, Margaret, -1942
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Grenville, Richard, Sir, 1541?-1591
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Selznick, David O., 1902-1965