Image from Wikimedia Commons
unknown - Public Domain
Jeasto - CC BY-SA 3.0
Godefroy Engelmann (1788-1839) after Pierre-Roch Vigneron (1789-1872) - Public Domain
anonymous -
Karl Gottfried Brunotte -
Naval Research Laboratory - Public Domain
Public Domain
Ezra Ames, artist. - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
Bisto - CC BY-SA 3.0
not stated - Public Domain
Erling Mandelmann - CC BY-SA 3.0
user at project - Public Domain
Trailer for "Breezy" (1973) - Public Domain
Technology Force - CC BY-SA 4.0
Image from Wikimedia Commons
unknown - Public Domain
Śarahzohn, Katriʼel Tsevi 1835-1905
Image from Wikimedia Commons
unknown - Public Domain
Brett, John Watkins 1805-1863
Image from Wikimedia Commons
Jeasto - CC BY-SA 3.0
East, Edward Hyde, 1764-1847
Image from Wikimedia Commons
Godefroy Engelmann (1788-1839) after Pierre-Roch Vigneron (1789-1872) - Public Domain
Bichat, Xavier, 1771-1802
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Leighton, Robert, 1611-1684
Image from Wikimedia Commons
Livingstone, David, 1813-1873
Image from Wikimedia Commons
anonymous -
Skraup, Zdenko Hans
Image from Wikimedia Commons
Karl Gottfried Brunotte -
Brunotte, Karl Gottfried, 1958-
Image from Wikimedia Commons
Naval Research Laboratory - Public Domain
Gunn, Ross, 1897-1966
Image from Wikimedia Commons
Public Domain
Cabell, William H., 1772-1853
Image from Wikimedia Commons
Ezra Ames, artist. - Public Domain
Cushman, John P. (John Paine), 1784-1848
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George Grantham Bain Collection (Library of Congress) - Public Domain
Ward, Wilfrid, 1856-1916
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Kilpatrick, John R. (John Reed), 1889-1960
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Bartow, Francis S. (Francis Stebbins), 1816-1861
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Public Domain
Winter, Ralph K., 1935-....
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Bisto - CC BY-SA 3.0
Newell, Lloyd D., 1956-
Image from Wikimedia Commons
Radstock, Granville Waldegrave, Baron, 1833-1913
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not stated - Public Domain
Quaritch, Bernard, 1819-1899
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Murphree, Albert Alexander, 1870-1927
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unknown - Public Domain
Anderson, William T.
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Pigage, Nicolas de 1723-1796
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Inman, Henry, 1801-1846
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Erling Mandelmann - CC BY-SA 3.0
Cavalier, Alain, 1931-....
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user at project - Public Domain
Elkins, Stanley M.
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Hind, J. Russell (John Russell), 1823-1895
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Brown, Albert Gallatin, 1813-1880
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Trailer for "Breezy" (1973) - Public Domain
Lenz, Kay, 1953-....
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Krishnamurti, J. (Jiddu), 1895-1986
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Medwin, Thomas, 1788-1869
Image from Wikimedia Commons
Technology Force - CC BY-SA 4.0
Raffill, Stewart