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Photo: Andreas Praefcke - CC BY 3.0
Public Domain
Detroit Public Library - Public Domain
United States Navy photograph - Public Domain
fry_theonly - CC BY-SA 2.0
Dhasler - Public Domain
Teddyyy - CC BY-SA 3.0
Paul the Archivist - CC BY-SA 4.0
'''Rastrojo - CC BY-SA 3.0
Mathew Brady - Public Domain
Benjamin Robert Haydon - Public Domain
Open Media Ltd - CC BY-SA 3.0
Contemporary portrait - Public Domain
Alan Light - CC BY 2.0
NBC - Public Domain
Vujcic - CC BY 2.0
T.G.C.=Topps Gum Cards/photo by Roulette Records - Public Domain
unknown - Public Domain
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Photo: Andreas Praefcke - CC BY 3.0
Scholl, Inge, 1917-1998
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Public Domain
Neraz, John Claudius, 1828-1894
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Bunche, Ralph J. (Ralph Johnson), 1904-1971
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Detroit Public Library - Public Domain
Lyon, Lucius, 1800-1851
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United States Navy photograph - Public Domain
Ingersoll, Royal E. (Royal Eason), 1883-1976
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fry_theonly - CC BY-SA 2.0
Friedman, Alan, 1928-
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Dhasler - Public Domain
Johnson, Hugh, 1939-....
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Teddyyy - CC BY-SA 3.0
Ledoux, Fernand, 1897-1993
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Lovelace, Linda
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Paul the Archivist - CC BY-SA 4.0
Ledward, Gilbert, 1888-1960
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Fritsch, Werner Thomas Ludwig, Freiherr von, 1880-1939
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Friedrich, Caspar David, 1774-1840
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Huntsman, Jon Meade, Sr., 1937-2018
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Mali︠a︡vin, Filipp Andreevich, 1869-1940
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Duquesne, Fritz Joubert, 1879-
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Phillips, John, 1719-1795
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'''Rastrojo - CC BY-SA 3.0
Isasi-Isasmendi, Antonio, 1927-....
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Mathew Brady - Public Domain
Granger, Gordon, 1822-1876
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Benjamin Robert Haydon - Public Domain
Greville, Robert Kaye, 1794-1866
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Manwood, Roger, 1524 or 1525-1592
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Dolbear, A. E. (Amos Emerson), 1837-1910
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Open Media Ltd - CC BY-SA 3.0
Smith, T. Dan (Thomas Dan), 1915-
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Dewees, William P. (William Potts), 1768-1841
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Contemporary portrait - Public Domain
Ames, Oliver, 1807-1877
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Bulychev, K. (Kirill)
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Alan Light - CC BY 2.0
Henderson, Florence
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NBC - Public Domain
Newman, Edwin
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Vujcic - CC BY 2.0
Scott, Craig (Craig M.)
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T.G.C.=Topps Gum Cards/photo by Roulette Records - Public Domain
Bowen, Jimmy
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unknown - Public Domain
Ziehrer, Carl Michael, 1843-1922