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Simeano - CC BY-SA 3.0
unknown - Public Domain
zombieite - CC BY 2.0
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Inelli29 - CC BY-SA 3.0
Alfred Charles Barker -
Georges Biard - CC BY-SA 3.0
Men of Mark Publishing, Washington DC - Public Domain
haade - CC BY-SA 2.5
Unknown (Bain News Service, publisher) - Public Domain
Esselte - Public Domain
David G. Roskies - CC BY-SA 3.0
Romina Espinosa - CC BY-SA 3.0
Giovanni MORGHEN - Public Domain
Sir Archibald Geikie -
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Schwarz, Eugene Amandus, 1844-1928
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Personal Photo - Public Domain
Prasad, Gopal.
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Bastianich, Lidia
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Simeano - CC BY-SA 3.0
Cheung, Alfred
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unknown - Public Domain
Marshall, William Calder, 1813-1894
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Hymer, Warren, 1906-1948
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zombieite - CC BY 2.0
Tobin, Austin J.
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Tamagno, Francesco, 1850-1905
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Dufour, Guillaume Henri, 1787-1875
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Beatty, John, 1749-1826
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RCraig09 - CC BY-SA 3.0
Manchester, Melissa
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Bromfield, William, 1712-1792
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Jacobi, Viktor, 1883-1921
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Inelli29 - CC BY-SA 3.0
Dolgin, Gail
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Christie, Mr. (James), 1730-1803
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Alfred Charles Barker -
Harper, Henry John Chitty, 1804-1893
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Georges Biard - CC BY-SA 3.0
Hopper, Dennis, 1936-2010
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Boorman, John, 1933-....
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Goltz, Colmar, Freiherr von der, 1843-1916
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unknown - Public Domain
Altieri, Vincenzo Maria
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Men of Mark Publishing, Washington DC - Public Domain
Peelle, Stanton J. (Stanton Judkins), 1843-1928
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haade - CC BY-SA 2.5
Oliphant, Mark, 1901-2000
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Unknown (Bain News Service, publisher) - Public Domain
Robinson, Boardman, 1876-1952
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Esselte - Public Domain
Gasser, Herbert S. (Herbert Spencer), 1888-1963
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Carvajal y Lancáster, José de, 1698-1754
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David G. Roskies - CC BY-SA 3.0
Roskies, David G., 1948-....
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Public Domain
Brookhart, Smith Wildman, 1869-1944
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Romina Espinosa - CC BY-SA 3.0
Disney, Roy Edward
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Giovanni MORGHEN - Public Domain
Hamilton, William, Sir, 1730-1803
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Sir Archibald Geikie -
Geikie, Archibald, 1835-1924