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I don't know - Public Domain
Samuel Butler (1774-1839) - Public Domain
unknown - Public Domain
Johanne Hesbeck (1873-1927) - Public Domain
US Government Printing Office - Public Domain
WhisperToMe - Public Domain
unknown photographer - Public Domain
Beyond My Ken -
Public Domain
not stated - Public Domain
M. Stohl - Public Domain
Daniel Benavides - CC BY 2.0
Frederick Gutekunst - Public Domain
US gov - Public Domain
Tom Marcello - CC BY-SA 2.0
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I don't know - Public Domain
Browne, J. Ross (John Ross), 1821-1875
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Samuel Butler (1774-1839) - Public Domain
Butler, Samuel, 1774-1839
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Rogers, Fairman, 1833-1900
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unknown - Public Domain
Bamberger, Heinrich von 1822-1888
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Johanne Hesbeck (1873-1927) - Public Domain
Olrik, Axel, 1864-1917
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US Government Printing Office - Public Domain
Eilberg, Joshua, 1921-2004
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Johnson, Avery, 1965-
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Buonafede, Appiano, 1716-1793
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WhisperToMe - Public Domain
New Mexico History Museum
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unknown photographer - Public Domain
Boyd, Andrew Kennedy Hutchison, 1825-1899
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García de Paredes, Diego 1466-1534
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Patenaude, Esioff-Léon, 1875-1963
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Beyond My Ken -
Whitney Museum of American Art
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Loreburn, Robert T. Reid (Robert Threshie Reid), Earl, 1846-1923
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Dubinsky, David, 1892-1982
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Carriego, Evaristo, 1883-1912
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Public Domain
Radisson, Pierre Esprit, approximately 1636-1710
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Diels, Rudolf, 1900-1957
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not stated - Public Domain
Paul, C. Kegan (Charles Kegan), 1828-1902
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M. Stohl - Public Domain
Lewald, Fanny, 1811-1889
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Kunst, Jaap, 1891-1960
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Kummer, Corby
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Safford, Truman Henry, 1836-1901
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Daniel Benavides - CC BY 2.0
Weaver, Sigourney, 1949-....
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Frederick Gutekunst - Public Domain
Nixon, John T. (John Thompson), 1820-1889
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Traube, Ludwig, 1861-1907
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Bennett, Arnold, 1867-1931
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US gov - Public Domain
Sinkov, Abraham, 1907-
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Hart, William S. (William Surrey), 1864-1946
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Tom Marcello - CC BY-SA 2.0
Mann, Herbie, 1930-2003