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John Payne - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Colin1661music - CC BY-SA 3.0
author - Public Domain
Public Domain
U.S. Senate - Public Domain
Unknown; scanned by 天竺鼠 - Public Domain
Suzanne Opton - CC BY 3.0
Tzahy Lerner from the Hebrew Wikipedia - CC BY-SA 2.5
Unbekannter Künstler - Public Domain
Illegible - Public Domain
State of Washington - Public Domain
Ron Kroon / Anefo - CC0 1.0
Contemporary photograph - Public Domain
Unknown military photographer of Signal Corps - Public Domain
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Blyleven, Bert
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Waller, Augustus Désiré, 1856-1922
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John Payne - Public Domain
Payne, John ca. 1607-ca. 1647
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George Grantham Bain Collection (Library of Congress) - Public Domain
Gibbs, Philip, 1877-1962
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Colin1661music - CC BY-SA 3.0
Rankin, Paul
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author - Public Domain
Stevenson, C. L. (Carter Littlepage), 1817-1888
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Fuertes, Louis Agassiz, 1874-1927
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Public Domain
Reed, John, 1887-1920
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Public Domain
Sanders, Wilbur Fisk, 1834-1905
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Kaczmarek, Jan A.P.
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Hardouin, Jean, 1646-1729
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Bouchotte, J. (Jean), 1754-1840
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U.S. Senate - Public Domain
Clark, Dick, 1928-
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Unknown; scanned by 天竺鼠 - Public Domain
Yen, Hui-chʻing, 1877-1950
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Ferrié, Gustave-Auguste, 1868-1932
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Conrad, Robert Taylor, 1810-1858
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Suzanne Opton - CC BY 3.0
Goldfarb, Sidney, 1942-
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Tzahy Lerner from the Hebrew Wikipedia - CC BY-SA 2.5
Yavetz, Zvi, 1925-
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Unbekannter Künstler - Public Domain
Zumárraga, Juan de, 1468-1548
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Andrews, C. F. (Charles Freer), 1871-1940
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Lemaître, Frédérick, 1800-1876
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Public Domain
Laval, François de, 1623-1708
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Illegible - Public Domain
Duprez, Gilbert, 1806-1896
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State of Washington - Public Domain
Gibbs, George, 1815-1873
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Ron Kroon / Anefo - CC0 1.0
Reshevsky, Samuel, 1911-1992
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Vibert, J. G. (Jehan Georges), 1840-1902
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Farthing, Stephen, 1950-....
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Aeschines
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Contemporary photograph - Public Domain
Edersheim, Alfred, 1825-1889
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Unknown military photographer of Signal Corps - Public Domain
Taussig, Joseph K. (Joseph Knefler), 1877-1947