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unknown - Public Domain
Universal Pictures - Public Domain
US Government Printing Office - Public Domain
Harris & Ewing - Public Domain
trailer screenshot (MGM) - Public Domain
Edward McCluney, Cambridge, Massachusetts, USA - CC BY-SA 3.0
Public Domain
Anirudh Koul - CC BY 2.0
Essex Southern District Medical Society - Public Domain
unknown - CC BY-SA 4.0
Courtesy of the Bodleian Library - Public Domain
Nv8200p - CC BY-SA 3.0
Photo by Christopher Peterson - CC BY 3.0
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Copyright holder releases image per Commons:OTRS - CC BY-SA 3.0
Corbett, Richard, 1955-
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Heckscher, Eli F. (Eli Filip), 1879-1952
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unknown - Public Domain
Cavendish, Frederick Charles, 1836-1882
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Dean, William F. (William Frishe), 1899-1981
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Universal Pictures - Public Domain
Torrence, David, 1864-1951
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US Government Printing Office - Public Domain
Ikard, Frank Neville, 1913-1991
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Harris & Ewing - Public Domain
Seeger, Charles, 1886-1979
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unknown - Public Domain
Wilberforce, Robert Isaac, 1802-1857
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Daniele, da Volterra, approximately 1509-1566
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trailer screenshot (MGM) - Public Domain
Delmar, Viña, 1903-1990
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Wellington, Arthur Wellesley, Duke of, 1769-1852
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Moore, C. L. (Catherine Lucile), 1911-1987
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Wilson, David Sloan.
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Edward McCluney, Cambridge, Massachusetts, USA - CC BY-SA 3.0
Williams, James H.
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Public Domain
Baldwin, Roger S. (Roger Sherman), 1793-1863
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Loder, Just Christian von, 1753-1832
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Ludwig, Emil, 1881-1948
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Anirudh Koul - CC BY 2.0
Roth, David Lee, 1955-
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Essex Southern District Medical Society - Public Domain
Holyoke, Edward Augustus, 1728-1829
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Reilly, Thomas L. (Thomas Lawrence), 1858-1924
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unknown - CC BY-SA 4.0
Maitland, E. M. (Edward Maitland), 1880-1921
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Verrazzano, Giovanni da 1485-1528
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Stanyan, Abraham, 1669?-1732
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Courtesy of the Bodleian Library - Public Domain
Elliot, Hugh, 1752-1830
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Nv8200p - CC BY-SA 3.0
Fromholz, Steven
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Photo by Christopher Peterson - CC BY 3.0
Englander, Nathan
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Moreau, Jean Victor Marie, 1763-1813
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Sévigné, Marie de Rabutin-Chantal, marquise de, 1626-1696
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Ripploh, Frank, 1949-2002
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Longair, M. S., 1941-