Image from Wikimedia Commons
Sailko - CC BY-SA 3.0
unknown - Public Domain
Lewis Jones - Public Domain
National Geographic Society - Public Domain
GFHund - CC BY 3.0
unknown photographer, Fox Film Corporation (film) - Public Domain
Uknown War Photographer - Public Domain
original uploader - Public Domain
Supercomputer12 - CC BY-SA 3.0
Slobodan Dimitrov - CC BY-SA 3.0
Toño Zapata - Public Domain
©1915 Essanay Studios - Public Domain
LSE Library -
Gage Skidmore - CC BY-SA 3.0
Portrait by A. Tenney based on contemporary engraving, 1873 - Public Domain
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Sailko - CC BY-SA 3.0
Acciaiuoli, Donato, 1429-1478
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Guthrie, Nora
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Meigs, Charles D. (Charles Delucena), 1792-1869
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unknown - Public Domain
Maris, Mona, 1903-1991
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Lewis Jones - Public Domain
Jones, Lewis, 1836-1904
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Doblado, Manuel, 1818-1865
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National Geographic Society - Public Domain
Gannett, Samuel S. (Samuel Stinson), 1861-1939
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GFHund - CC BY 3.0
Mulliken, Robert Sanderson
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unknown photographer, Fox Film Corporation (film) - Public Domain
Edwards, J. Gordon
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Uknown War Photographer - Public Domain
Howze, Robert Lee, 1864-1926
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unknown - Public Domain
Machado y Álvarez, Antonio 1846-1893
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Gaspar, Enrique, 1842-1902
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original uploader - Public Domain
Barnard, Edward Emerson, 1857-1923
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Supercomputer12 - CC BY-SA 3.0
Ayers, William, 1944-....
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Giovannitti, Arturo
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Ramsay, James, 1733-1789
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Fraser, James McIntosh, 1889-1961
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Slobodan Dimitrov - CC BY-SA 3.0
Freire, Paulo, 1921-1997
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Saint-Simon, Henri, comte de, 1760-1825
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Toño Zapata - Public Domain
Sánchez Cerro, Luis M. 1889-1933
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Vanocur, Sander
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Bingham, Hiram, 1831-1908
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©1915 Essanay Studios - Public Domain
Bacon, Lloyd, 1890-1955
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unknown - Public Domain
Nicholson, Meredith, 1866-1947
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Marden, Orison Swett, 1848-1924
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LSE Library -
Rathbone, Eleanor F. (Eleanor Florence), 1872-1946
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Gage Skidmore - CC BY-SA 3.0
Duncan, Robert Michael, 1951-
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unknown - Public Domain
Swan, Timothy
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Portrait by A. Tenney based on contemporary engraving, 1873 - Public Domain
Badger, William, 1779-1852
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Carr, J. Comyns (Joseph Comyns), 1849-1916