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. - Public Domain
United Artists - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
John Singer Sargent - Public Domain
unknown - Public Domain
Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) - CC BY 3.0
Contemporary portrait - Public Domain
Gage Skidmore - CC BY-SA 3.0
Burton Lee Thorpe ''et al.'' - Public Domain
AndrewRH - CC BY-SA 3.0
20th Century Fox - Public Domain
Roby - Public Domain
Wenzel Hollar - Public Domain
Raimbaut de Vaqueiras - Public Domain
Theodore Melvin Banta - Public Domain
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Król, John J. (John Joseph), 1910-1996
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Schuch, Ernst von 1846-1914
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Yaʻqub Beg, Khan of Kashghar, 1820?-1877
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. - Public Domain
Clarke, Adam, approximately 1762-1832
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United Artists - Public Domain
Lampert, Zohra, 1937-.....
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Ichimada, Hisato, 1893-
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Mathew Brady Levin Corot Handy - Public Domain
Haldeman, Samuel Stehman, 1812-1880
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John Singer Sargent - Public Domain
Loeffler, Charles Martin, 1861-1935
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unknown - Public Domain
Varick, James, approximately 1750-1827
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Miller-Meeks, Mariannette, 1955-
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Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) - CC BY 3.0
Goldberger, Arthur Stanley, 1930-....
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Contemporary portrait - Public Domain
Brown, John, 1722-1787
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Lenox, James, 1800-1880
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Wirkkala, Tapio, 1915-1985
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Gage Skidmore - CC BY-SA 3.0
West, Adam, 1928-
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Murray, Eli H. (Eli Houston), 1843-1896
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Amos, John, 1939-
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Terbrugghen, Hendrik, 1588?-1629
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Burton Lee Thorpe ''et al.'' - Public Domain
Garretson, James Edmund, 1828-1895
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AndrewRH - CC BY-SA 3.0
Adams, Richard, 1920-....
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20th Century Fox - Public Domain
Whalen, Michael, 1902-1974
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Roby - Public Domain
Elleviou, Jean, 1769-1842
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Wenzel Hollar - Public Domain
Bolingbroke, Oliver St. John, Earl of, 1580?-1646
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unknown - Public Domain
Maynard, David S. (David Swinson), 1808-1873
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Hagin, Kenneth E., 1917-....
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Raimbaut de Vaqueiras - Public Domain
Raimbaut, de Vaqueiras, active 12th century
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Theodore Melvin Banta - Public Domain
Sayre, Stephen, 1736-1818
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Stone, William Henry, 1828-1901
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Reicher, Emanuel
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Matulka, Jan, 1890-1972