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NBC Television - Public Domain
unknown - Public Domain
Department of State - Public Domain
Engraving by S. Freeman - Public Domain
Shepardwinsdon - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Pigsonthewing - CC BY-SA 3.0
Nina Sellars - CC BY 2.5
Frederick Winthrop Faxon - Public Domain
Bert Verhoeff / Anefo - CC BY-SA 3.0
Carl Størmer - CC BY-SA 3.0
allen_dimick - CC BY 2.0
David.Monniaux - CC BY-SA 3.0
GeoPaul7 - CC BY-SA 4.0
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Louis Ferdinand, Prince of Prussia, 1907-
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Bowditch, Henry I. (Henry Ingersoll), 1808-1892
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NBC Television - Public Domain
Babbitt, Harry
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Alison, William Pulteney, 1790-1859
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Wieck, Marie, 1832-1916
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Lapine, James.
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Roy, J. Stapleton
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unknown - Public Domain
Garrison, Zina, 1963-
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Department of State - Public Domain
Jessup, Philip C. (Philip Caryl), 1897-1986
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Engraving by S. Freeman - Public Domain
Laing, Alexander Gordon
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Shepardwinsdon - Public Domain
Scott, Howard
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George Grantham Bain Collection (Library of Congress) - Public Domain
Burne-Jones, Philip, 1861-1926
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Pigsonthewing - CC BY-SA 3.0
Timmins, Samuel, 1826-1902
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Nina Sellars - CC BY 2.5
Stelarc, 1946-
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Greenhaw, Wayne, 1940-....
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Bascom, Florence, 1862-1945
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unknown - Public Domain
Campbell, George Washington, 1769-1848
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Frederick Winthrop Faxon - Public Domain
Askew, Sarah B. (Sarah Byrd), 1863-1942
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unknown - Public Domain
Branly, Édouard, 1844-1940
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Kloos, Willem, 1859-1938
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Bert Verhoeff / Anefo - CC BY-SA 3.0
Spock, Benjamin, 1903-1998
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Carl Størmer - CC BY-SA 3.0
Geelmuyden, H. (Hans), 1844-1920
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allen_dimick - CC BY 2.0
Puckett, Kirby
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Mathews, Charles, 1776-1835
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David.Monniaux - CC BY-SA 3.0
Ellis, George F.R. (George Francis Rayner)
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GeoPaul7 - CC BY-SA 4.0
Sutton, George Miksch, 1898-1982
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Early, Jubal Anderson, 1816-1894
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Allen, George E. (George Edward), 1896-1973
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Chukhont︠s︡ev, Oleg, 1938-
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Scott, Hugh Lenox, 1853-1934