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Pfzenke - CC BY-SA 3.0
The Nobel Foundation - Public Domain
Georges Biard - CC BY-SA 3.0
unknown - Public Domain
anonymous - Public Domain
New York World-Telegram and the Sun staff photographer - Public Domain
original uploader - Public Domain
https://www.loc.gov/rr/print/res/140_harr.html - Public Domain
Canadian Film Centre - CC BY 2.0
Author unknown; Photo courtesy Orange County Archives - CC BY-SA 2.5
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Kirkpatrick, A. A. (Andrew Alexander), 1848-1928
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Pfzenke - CC BY-SA 3.0
McKenzie, Jon, 1960-....
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Müller, Johannes, 1801-1858
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Basilius Valentinus
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The Nobel Foundation - Public Domain
Whipple, George Hoyt, 1878-1976
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Palamas, Kōstēs, 1859-1943
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Georges Biard - CC BY-SA 3.0
Blier, Bertrand
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Romero, Eddie
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Warren, Charles, Sir, 1840-1927
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unknown - Public Domain
Jackson, Stonewall, 1824-1863
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anonymous - Public Domain
Cortés, Hernán, 1485-1547
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Celsius, Anders, 1701-1744
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New York World-Telegram and the Sun staff photographer - Public Domain
Perkins, Maxwell E. (Maxwell Evarts), 1884-1947
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Rodman, T. J. (Thomas Jefferson), 1815-1871
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Folger, Mayhew, 1774-1828
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Courtney, Leonard Henry Courtney, Baron, 1832-1918
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Khan, Agha Mohammad Yahya, 1917-
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Carmona, António Oscar de Fragoso, 1869-1951
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unknown - Public Domain
Swisshelm, Jane Grey Cannon, 1815-1884
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Cohen, Leonard, 1934-
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Napier, John, 1550-1617
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Conradi, Edward, 1869-1944
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original uploader - Public Domain
Palmer, Potter
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Mudge, B. F. (Benjamin Franklin), 1817-1879
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https://www.loc.gov/rr/print/res/140_harr.html - Public Domain
Currie, Lauchlin Bernard
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Bond, James, 1900-1989
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Phra Thēpwisutthimēthī (Ngư̄am), 1906-1993
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Canadian Film Centre - CC BY 2.0
Fotheringham, Allan, 1932-....
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Author unknown; Photo courtesy Orange County Archives - CC BY-SA 2.5
Brown, Edmund G. (Edmund Gerald), 1905-1996
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unknown - Public Domain
Grant, Jane C., 1892-1972