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US Government - Public Domain
unknown - Public Domain
Photo not credited in any obvious way - Public Domain
Erling Mandelmann - CC BY-SA 3.0
w - Public Domain
Unknown - Public Domain
(Photo booth?)<br> - Public Domain
Unknown author - Public Domain
photo by G. Camus - Public Domain
Sashkafr - CC BY-SA 4.0
Klein & Guttenstein - Public Domain
Antoine Maurin - Public Domain
United States Senate Historical Office - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Photography department - Government Press Office - Public Domain
Louis-Joseph-Isnard Desjardins - Public Domain
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US Government - Public Domain
Lloyd, Lola Maverick, 1875-1944
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Wolf, F.A. (Friedrich August), 1759-1824
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unknown - Public Domain
Carcopino, Jérôme, 1881-1970
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Watt, Robert, 1774-1819
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Bell, Alphonzo, 1914-2004
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Photo not credited in any obvious way - Public Domain
Struve, Henry G.
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Croissant, Klaus, 1931-2002
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Viebig, Clara, 1860-1952
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unknown - Public Domain
Cody, Josh, 1892-1961
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Erling Mandelmann - CC BY-SA 3.0
Haubensak, Pierre, 1935-
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w - Public Domain
Creswell, John A. J. (John Angel James), 1828-1891
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Unknown - Public Domain
Creelman, James Ashmore
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(Photo booth?)<br> - Public Domain
Quine, W. V. (Willard Van Orman)
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Unknown author - Public Domain
Phelips, Edward, approximately 1555-1614
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photo by G. Camus - Public Domain
Guiraud, Ernest, 1837-1892
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Sashkafr - CC BY-SA 4.0
Zauberman, Yolande
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Klein & Guttenstein - Public Domain
McWade, Robert, 1872-1938
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Starhemberg, Guidobald, Graf von, 1657-1737
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Kryl, Bohumír, 1875-1961
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unknown - Public Domain
Dunois, Jean, comte de, approximately 1403-1468
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Antoine Maurin - Public Domain
Carafa, Michele, 1787-1872
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Prinze, Freddie, Jr.
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Levingston, Roberto Marcelo, 1920-....
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Péguy, Charles, 1873-1914
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Aschheim, Isidor, 1891-1968
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United States Senate Historical Office - Public Domain
Allott, Gordon, 1907-1989
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Gott, William Henry Ewart, 1897-1942
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George Grantham Bain Collection (Library of Congress) - Public Domain
Golschmann, Vladimir, 1893-1972
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Photography department - Government Press Office - Public Domain
Amery, Julian, 1919-1996
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Louis-Joseph-Isnard Desjardins - Public Domain
Coussemaker, Charles-Edmond-Henri de, 1805-1876