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NASA - Public Domain
Jbribeiro1/by - CC BY-SA 3.0
unknown - Public Domain
Ursus Samaga - CC BY 3.0
photo d'identité vers 1906 - Public Domain
Canada Jack - CC BY-SA 3.0
Herry Lawford - CC BY 2.0
Johnston, Frances Benjamin, 1864-1952, photographer - Public Domain
Dschwen - CC BY-SA 4.0
Alexander Seitz (Photographic company) - Public Domain
Public Domain
Lexrepublica - CC BY-SA 4.0
Bill Doll and Company, New York-publicity agency - Public Domain
William Kurtz - Public Domain
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NASA - Public Domain
Fettman, Martin J., 1956-
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Jbribeiro1/by - CC BY-SA 3.0
Metochites, Theodoros, -1332
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MacCurdy, George Grant, 1863-1947
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Scofield, C.I. (Cyrus Ingerson), 1843-1921
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unknown - Public Domain
Chace, Arnold Buffum, 1845-1932
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Herlihy, Ed
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Bonesteel, Charles H. (Charles Hartwell), 1909-1977
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Ursus Samaga - CC BY 3.0
Lloyd, Frank
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photo d'identité vers 1906 - Public Domain
Scotto, Vincent, 1876-1952
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Canada Jack - CC BY-SA 3.0
Childs, Barney
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Spurrier, Steve, 1945-
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Herry Lawford - CC BY 2.0
Treacy, Philip, 1967-....
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Johnston, Frances Benjamin, 1864-1952, photographer - Public Domain
Wherry, Edgar Theodore, 1885-
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Dschwen - CC BY-SA 4.0
Pirner, Dave
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Alexander Seitz (Photographic company) - Public Domain
Donders, F.C. (Franciscus Cornelis), 1818-1889
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Public Domain
Dana, Napoleon Jackson Tecumseh, 1822-1905
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Lexrepublica - CC BY-SA 4.0
Vespignani, Virginio, 1808-1882
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Rogers, William P. (William Pierce), 1913-2001
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Eddy, Jonathan, 1726 or 1727-1804
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Westwood, J.O. (John Obadiah), 1805-1893
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Bill Doll and Company, New York-publicity agency - Public Domain
Swann, Donald, 1923-1994
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Axton, Hoyt
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O'Connell, James D., 1899-1984
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William Kurtz - Public Domain
Vedder, Elihu, 1836-1923
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Tocqueville, Alexis de 1805-1859
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Public Domain
Kalbfus, Edward C. (Edward Clifford), 1877-1954
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Gregory, William Henry, Sir, 1817-1892
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Khrushchev, Nikita Sergeevich, 1894-1971
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Belgrano, Manuel, 1770-1820
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unknown - Public Domain
Doane, Gustavus Cheyney, 1840-1892