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Bushnell - Public Domain
unknown - Public Domain
Photographer Ulf Stråhle/SVT Bild - Public Domain
Dan Harasymchuk - CC BY-SA 4.0
Bain News Service - Public Domain
AlonKopp - CC BY-SA 4.0
credited to Ernest deKoven Leffingwell; cropped by uploader - Public Domain
Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Donna Olmstead - CC BY-SA 3.0
Slowking -
David Sifry - CC BY 2.0
Saul Yanovsky - Public Domain
Gavan Daws - Public Domain
original uploader - Public Domain
The Hindusthanee Student - Public Domain
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Walling, William English, 1877-1936
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Bushnell - Public Domain
Gillett, James Norris, 1860-1937
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unknown - Public Domain
Fendall, Philip Ricard, 1794-1868
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Photographer Ulf Stråhle/SVT Bild - Public Domain
Rydbeck, Olof, 1913-1995
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Sologub, Fyodor, 1863-1927
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unknown - Public Domain
Sánchez, Luis Alberto, 1900-1994
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Dan Harasymchuk - CC BY-SA 4.0
Dempster, Barry, 1952-
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Monagas, José Tadeo, 1784-1868
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Bain News Service - Public Domain
Moulton, J. Fletcher (John Fletcher), 1844-1921
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AlonKopp - CC BY-SA 4.0
Rothbart, Daniel, 1966-
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Leroy d'Étiolles, Jean-Jacques-Joseph (1798-1860).
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Norfolk, Charles Howard, Duke of, 1746-1815
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unknown - Public Domain
Leeds, Peregrine Osborne, Duke of, 1658-1729
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Perry, Rick, 1950-
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Greitens, Eric, 1974-
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credited to Ernest deKoven Leffingwell; cropped by uploader - Public Domain
Leffingwell, Ernest De Koven, 1876-1971.
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Public Domain
Fogel, Seymour, 1911-1984
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George Grantham Bain Collection (Library of Congress) - Public Domain
Kemmerer, Edwin Walter, 1875-1945
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Gwinnett, Button, c. 1735-1777
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Schoenbaum, S. (Samuel), 1927-1996
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McKay, Adam, 1968-....
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Donna Olmstead - CC BY-SA 3.0
Ostrander, John.
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unknown - Public Domain
Kobold, Hermann, 1858-1942
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Slowking -
Howe, Marie, 1950-
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David Sifry - CC BY 2.0
Waters, Alice
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Saul Yanovsky - Public Domain
Janovsky, Saul Joseph, 1864-1939
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Gavan Daws - Public Domain
Gibson, Walter Murray
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Say, Jean-Baptiste, 1767-1832
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original uploader - Public Domain
Martin, B. F. (Benjamin Franklin), 1828-1895
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The Hindusthanee Student - Public Domain
Sarkar, Benoy Kumar, 1887-1949