Image from Wikimedia Commons
unknown photographer - Public Domain
US gov - Public Domain
unknown - Public Domain
Snichifor - CC BY-SA 3.0
Johndesmarteau - CC BY-SA 4.0
original uploader - Public Domain
Unknown, but believed to within the PD. - Public Domain
Lia Chang - CC BY-SA 2.0
Yumi Takaishi - Public Domain
gerard krooshof - Public Domain
Unknown photographer -
Georges Biard - CC BY-SA 3.0
Jefferson Machamer - Public Domain
Detroit Publishing Company - Public Domain
Image from Wikimedia Commons
unknown photographer - Public Domain
Princip, Gavrilo, 1894-1918
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US gov - Public Domain
Phelps, Samuel Shethar, 1793-1855
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Sybel, Heinrich von 1817-1895
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unknown - Public Domain
James, David, 1838 or 1839-1893
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Snichifor - CC BY-SA 3.0
Alexandra, Liana, 1947-2011
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Johndesmarteau - CC BY-SA 4.0
Hautzig, Walter
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original uploader - Public Domain
Millerand, Alexandre, 1859-1943
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unknown - Public Domain
Baines, Edward, 1774-1848
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unknown - Public Domain
Sunia, Fofō I. F. (Fofō Iosefa Fiti), 1937-
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Fagen, Graham 1966-
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Mayo, William James, 1861-1939
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Unknown, but believed to within the PD. - Public Domain
Henrici, O. (Olaus), 1840-1918
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Lia Chang - CC BY-SA 2.0
Shiomi, R. A., 1947-
Image from Wikimedia Commons
Yumi Takaishi - Public Domain
Ay-o, 1931-
Image from Wikimedia Commons
gerard krooshof - Public Domain
Mariotte, Edmé, approximately 1620-1684
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unknown - Public Domain
Darling, Jay N. (Jay Norwood), 1876-1962
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Unknown photographer -
Ahrne, Marianne
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unknown - Public Domain
Kelley, Hall J. (Hall Jackson), 1790-1874
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Blechen, Karl, 1798-1840
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Georges Biard - CC BY-SA 3.0
Denicourt, Marianne, 1966-....
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Jefferson Machamer - Public Domain
Machamer, Jefferson, 1900-1960
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Alexander, Francis, 1800-1880
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Garrett, Robert, 1875-1961
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Novello, Clara, 1818-1908
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Grosswald, Emil.
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Platt, Edward
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Litvak, Anatole, 1902-1974
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Detroit Publishing Company - Public Domain
Ramsay, Francis M. (Francis Munroe), 1835-1914
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unknown - Public Domain
Happel, Eberhard Werner, 1647-1690
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Proctor, Redfield, 1879-1957