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Kupferstich von Gustav Zumpe, Sammlung Julius Wallach - Public Domain
Edward Greene Malbone - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Das blaue Sofa - CC BY 3.0
United Artists - Public Domain
unknown - Public Domain
Kathy Kreshock - Public Domain
author info - Public Domain
James Russell (1809 - 1899) and Sons - Public Domain
Nv8200p - CC BY-SA 4.0
CaitlynBunton98 - CC BY-SA 3.0
User at project link - Public Domain
Contemporary portrait - Public Domain
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Kupferstich von Gustav Zumpe, Sammlung Julius Wallach - Public Domain
Werner, Friedrich Ludwig Zacharias, 1768-1823
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Edward Greene Malbone - Public Domain
Dickinson, Anson, 1779-1852
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Mathew Brady Levin Corot Handy - Public Domain
Adams, Herbert Baxter, 1850-1901
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Das blaue Sofa - CC BY 3.0
Forsyth, Frederick, 1938-....
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United Artists - Public Domain
Goudal, Jetta, 1891-1985
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unknown - Public Domain
Nieremberg, Juan Eusebio, 1595-1658
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Kathy Kreshock - Public Domain
Adams, Evangeline, 1872?-1932
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John, Gwen, 1876-1939
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unknown - Public Domain
Throckmorton, Bess, 1565?-1647
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unknown - Public Domain
Osler, E. B. (Edmund Boyd), Sir, 1845-1924
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author info - Public Domain
Tissandier, Gaston, 1843-1899
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Kent Hughes, W. S. (Wilfrid Selwyn), Sir, 1895-1970
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James Russell (1809 - 1899) and Sons - Public Domain
Dannreuther, Edward, 1844-1905
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Nv8200p - CC BY-SA 4.0
McCracken, Elizabeth, active 1959
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Maloney, W. (William), 1854-1940
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Hatcher, Teri
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Douglas, James, 1803-1877
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Gagliano, Marco da 1582-1643
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Allen, George, 1952-
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CaitlynBunton98 - CC BY-SA 3.0
Black, Clint, 1962-
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Jagemann, Karoline, 1777-1848
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unknown - Public Domain
Press, Michael, 1872-1938
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User at project link - Public Domain
Soldati, Mario, 1906-1999
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Cochrane, Aaron V. S. (Aaron Van Schaick), 1858-
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Korotych, Vitaliĭ
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Hawley, Joseph Henry, Sir, 1813-1875
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Contemporary portrait - Public Domain
Birley, Hugh Hornby, -1845
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unknown - Public Domain
Pallen, Condé Bénoist, 1858-1929
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unknown - Public Domain
Webber, Herbert John, 1865-1946
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Stephenson, B. C. (Benjamin Charles), -1906