Image from Wikimedia Commons
1795 engraving - Public Domain
FBI - Public Domain
Gampe - CC0 1.0
Dell Publishing, 1946, sourced from https://archive.org/details/modernscreen3233unse Possible copyright status Library of Congress has determined that this item is not in copyright - Public Domain
CBS Radio Network - Public Domain
Redandready - CC BY-SA 3.0
unknown - Public Domain
US House Office of Photography -
Public Domain
George Grantham Bain Collection - Public Domain
George Vertue John Hayls -
Nv8200p - CC BY-SA 3.0
Juan Moreno de Tejada-Biblioteca Nacional de España - CC BY-SA 4.0
Sachyn - CC BY-SA 3.0
George Grantham Bain Collection (Library of Congress) - Public Domain
Image from Wikimedia Commons
1795 engraving - Public Domain
Barrington, Daines, 1727-1800
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Freimann, A. (Aron), 1871-1948
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Ismail, Khedive of Egypt, 1830-1895
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FBI - Public Domain
Jeffs, Warren, 1955-
Image from Wikimedia Commons
Gampe - CC0 1.0
Hejduk, John, 1929-2000
Image from Wikimedia Commons
Dell Publishing, 1946, sourced from https://archive.org/details/modernscreen3233unse Possible copyright status Library of Congress has determined that this item is not in copyright - Public Domain
Bruce, Carol, 1919-2007
Image from Wikimedia Commons
Néel, Louis 1904-
Image from Wikimedia Commons
CBS Radio Network - Public Domain
Collier, Lois, 1919-1999
Image from Wikimedia Commons
Redandready - CC BY-SA 3.0
Gray, James P., 1945-
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unknown - Public Domain
Lukens, Theodore Parker, 1848-1918
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US House Office of Photography -
Lofgren, Zoe, 1947-
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Evans, George William
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unknown - Public Domain
Stanmore, Arthur Hamilton-Gordon, Baron, 1829-1912
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Vernant, Jean-Pierre, 1914-2007
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Ellington, Buford, 1907-1972
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Perkins, Pinetop
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Public Domain
Kasson, John A.
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George Grantham Bain Collection - Public Domain
Aehrenthal, Aloys, Graf Lexa von, 1854-1912
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unknown - Public Domain
Ryan, John A. (John Augustine), 1869-1945
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George Vertue John Hayls -
Penruddock, John, 1619-1655
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Suvorov, Aleksandr Vasilʹevich, kni︠a︡zʹ Italiĭskiĭ, 1730-1800
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unknown - Public Domain
Rappe, Louis-Amadeus, Bishop, 1801-1877
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Nv8200p - CC BY-SA 3.0
Clark, Roy Peter.
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unknown - Public Domain
Arce, Ramón José de 1755-1844
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Hall, Willard, 1780-1875
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Showalter, Max
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Kirkland, Caroline M. (Caroline Matilda), 1801-1864
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Juan Moreno de Tejada-Biblioteca Nacional de España - CC BY-SA 4.0
Cascales, Francisco de 1564?-1642
Image from Wikimedia Commons
Sachyn - CC BY-SA 3.0
Gershon, Gina
Image from Wikimedia Commons
George Grantham Bain Collection (Library of Congress) - Public Domain
Smith, Hugh M. (Hugh McCormick), 1865-1941