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unknown -
not stated - Public Domain
author - Public Domain
Internet Archive Book Images -
Unknown (Bain News Service, publisher) - Public Domain
The Vatican - Public Domain
Lacroze - CC BY-SA 4.0
Associated Students, University of California, Los Angeles - Public Domain
See the Commons:OTRS - CC BY-SA 4.0
Original uploader was wDfass - Public Domain
20minutos.es (donated to the website's Virtual Museum of Old Photos by Agustin Pedrote Aznar) - CC BY-SA 3.0
:de:Benutzer:Joerg Reiher -
lastsham - CC BY 2.0
New York World-Telegram and the Sun staff photographer - Public Domain
author unknown - Public Domain
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Muskie, Edmund S., 1914-1996
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Jackson, William, 1730-1803
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unknown -
Kleffens, Eelco Nicolaas van 1894-1983
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not stated - Public Domain
Westcott, Edward Noyes, 1847-1898
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Moore, Gary, 1952-2011
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Monro, Alexander, 1697-1767
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Pickering, Edward C. (Edward Charles), 1846-1919
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author - Public Domain
Ruszczyc, Ferdynand, 1870-1936
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Internet Archive Book Images -
Abraham, Abraham, 1843-1911
Image from Wikimedia Commons
Unknown (Bain News Service, publisher) - Public Domain
Lasker, Edward 1912-1997
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The Vatican - Public Domain
Ritter, Joseph, 1892-1967
Image from Wikimedia Commons
Lacroze - CC BY-SA 4.0
Olsen, Kjell Erik Killi, 1952-....
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Associated Students, University of California, Los Angeles - Public Domain
Dane, Barbara
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Forster, François 1790-1872
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See the Commons:OTRS - CC BY-SA 4.0
Carter, Steven, 1956-
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Original uploader was wDfass - Public Domain
Friedländer, M. (Michael), 1833-1910
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Merry del Val, Raphael, 1865-1930
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Bassett, Fletcher S., 1849-1893
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Catlett, Sid, 1910-1951
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20minutos.es (donated to the website's Virtual Museum of Old Photos by Agustin Pedrote Aznar) - CC BY-SA 3.0
Moreno Torroba, Federico, 1891-1982
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Pemberton, John C. (John Clifford), 1814-1881
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Sloan, Samuel, 1817-1907
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Aspenström, Werner, 1918-
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:de:Benutzer:Joerg Reiher -
Manzecchi, Franco, 1931-1979
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Anville, Jean-Baptiste Bourguignon d', 1697-1782
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Meusebach, John O., 1812-1897
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lastsham - CC BY 2.0
A. Samad Said (Abdul Samad Said), 1935-
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New York World-Telegram and the Sun staff photographer - Public Domain
Walker, James John, 1881-1946
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Rigby, Cathy, 1952-
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author unknown - Public Domain
Bandera, Stepan, 1909-1959