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Udo Grimberg -
Public Domain
unknown photographer circa 1915 - Public Domain
Contemporary photograph - Public Domain
No photographer named in original source. - Public Domain
Konstantin Makovsky - Public Domain
De Vinne Press, Publisher - Public Domain
Fabian Bachrach - CC BY-SA 3.0
SydneyKLewis - CC BY-SA 4.0
MikaV - CC BY-SA 4.0
U.S. Department of State - Public Domain
Karta24 -
Bostonian13 - CC BY-SA 3.0
Nathaniel Bartlett Sylvester - Public Domain
David Zucker -
PHGCOM - CC BY-SA 3.0
Brianmcmillen - CC BY-SA 3.0
Cameron Yee at https://www.flickr.com/photos/ygx/ - CC BY 2.0
F Ceragioli - CC BY-SA 3.0
Internet Archive Book Images -
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Udo Grimberg -
Buck, Detlev, 1962-....
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Public Domain
Baker, H. F. (Henry Frederick), 1866-1956
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unknown photographer circa 1915 - Public Domain
Veblen, Oswald, 1880-1960
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Contemporary photograph - Public Domain
Yorke, P. C. (Peter Christopher), 1864-1925
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No photographer named in original source. - Public Domain
Horn, Kahn-Tineta, 1940-
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Konstantin Makovsky - Public Domain
Dargomyzhsky, Alexander
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Day, Timothy C. (Timothy Crane), 1819-1869
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Taylor, W. (William), 1765-1836
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Robertson, Howard, 1888-1963
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De Vinne Press, Publisher - Public Domain
Dawes, Rufus Robinson, 1838-1899
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Roosevelt, Alice Lee, 1861-1884
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Fabian Bachrach - CC BY-SA 3.0
Newton, Norman T., 1898-1992
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Francesco Sforza, Duke of Milan, 1401-1466
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SydneyKLewis - CC BY-SA 4.0
Kerr, J. G. (John Glasgow), 1824-1901
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MikaV - CC BY-SA 4.0
D.J. Jazzy Jeff
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U.S. Department of State - Public Domain
Big Bird (Fictitious character)
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Chiniquy, Charles Paschal Telesphore, 1809-1899
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Karta24 -
Suzuki, Seijun, 1923-...
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Silks, Mattie, 1845 or 1846-1929
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Bostonian13 - CC BY-SA 3.0
Arthur and Elizabeth Schlesinger Library on the History of Women in America
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Nathaniel Bartlett Sylvester - Public Domain
Seymour, David Lowrey, 1803-1867
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David Zucker -
Rhodes, L. (Louise)
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Hogg, Thomas Jefferson, 1792-1862
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PHGCOM - CC BY-SA 3.0
Languet de Gergy, Jean-Baptiste
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Brianmcmillen - CC BY-SA 3.0
Pullen, Don
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Orsini, Felice, 1819-1858
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Renton, Dave, 1972-....
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Cameron Yee at https://www.flickr.com/photos/ygx/ - CC BY 2.0
Hatch, Richard, 1945-
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F Ceragioli - CC BY-SA 3.0
Galliari, Bernardino, 1707-1794
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Internet Archive Book Images -
Colbert, Edwin H. (Edwin Harris), 1905-2001