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Robert Chambers and Thomas Napier Thomson - Public Domain
Franz Hanfstaengl - Public Domain
NASA - Public Domain
David Shankbone - CC BY 2.0
original uploader - Public Domain
after Sir William Orpen - Public Domain
Unknown (prior to 1921) -
David Eldan - Public Domain
Sol Hurok (concert promoter). There is a photographer's signature at lower right, but I can't make out what it says. - Public Domain
unknown - Public Domain
Soboky - CC BY-SA 4.0
L. U. Reavis, author. Western Engraving Company (St. Louis), engraver. - Public Domain
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Gray, John Hamilton, 1814-1889
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Fischer, Emil, 1852-1919
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Choltitz, Dietrich von
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Wortley, George C. (George Cornelius), 1926-
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Fuller, R. Buckminster (Richard Buckminster), 1895-1983
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Robert Chambers and Thomas Napier Thomson - Public Domain
Cruden, Alexander, 1699-1770
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Franz Hanfstaengl - Public Domain
Mitterwurzer, Anton 1818-1876
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NASA - Public Domain
Musgrave, Story, 1935-
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David Shankbone - CC BY 2.0
Banderas, Antonio
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original uploader - Public Domain
Niblack, Albert P. (Albert Parker), 1859-1929
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Eisenbud, David
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Blackford, Russell, 1954-....
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after Sir William Orpen - Public Domain
Allbutt, T. Clifford (Thomas Clifford), 1836-1925
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Bourguiba, Habib, 1903-2000
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Nahoum, Haïm, 1872-1960
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Whitgift, John, 1530?-1604
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Unknown (prior to 1921) -
Upton, Francis Robbins, 1852-1921
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David Eldan - Public Domain
Cherkassky, Shura
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Davenport, Dorothy, 1896-1977
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Sol Hurok (concert promoter). There is a photographer's signature at lower right, but I can't make out what it says. - Public Domain
Dobbs, Mattiwilda
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Pompez, Alex, 1890-1974
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Evans, E. P. (Edward Payson), 1831-1917
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Rhodes, John J. (John Jacob), 1943-2011
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unknown - Public Domain
Bailey, Florence Merriam, 1863-1948
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unknown - Public Domain
Parker, Herschel Clifford, 1867-1931
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Grimston, Harbottle, 1603-1685
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Soboky - CC BY-SA 4.0
Kanevskiĭ, Vitaliĭ
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L. U. Reavis, author. Western Engraving Company (St. Louis), engraver. - Public Domain
Kennett, Luther Martin, 1807-1873
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Bird, Charles Smith, 1795-1862
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Londonderry, Charles William Vane, Marquis of, 1778-1854