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William Strang - Public Domain
Trabajo propio. Reproducción de una fotografía de autor desconocido, década de 1930. - Public Domain
Steven Trefonides - CC BY-SA 3.0
Mathew Brady Levin Corot Handy - Public Domain
MGM Records - Public Domain
Sidney kirkpatrick - CC BY-SA 3.0
Josh Hallett at https://www.flickr.com/photos/hyku - CC BY-SA 2.0
Rebert -
unknown - Public Domain
Ron Kroon / Anefo - CC BY-SA 3.0
NASA - Public Domain
William Boothby Selbie - Public Domain
Smanworld - CC BY-SA 4.0
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William Strang - Public Domain
Strang, William, 1859-1921
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Trabajo propio. Reproducción de una fotografía de autor desconocido, década de 1930. - Public Domain
Ponce, Manuel María, 1874-1966
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Mangold, Hilde, 1898-1924
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Frosch, Robert A. (Robert Alan), 1928-
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Aschbacher, Michael, 1944-....
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Joyce, James, 1882-1941
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Samson, M. (Joseph-Isidore), 1793-1871
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Steven Trefonides - CC BY-SA 3.0
Thayer, Polly, 1904-2006
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Phyfe, Duncan, 1768-1854
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Force, M. F. (Manning Ferguson), 1824-1899
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Mathew Brady Levin Corot Handy - Public Domain
Vance, Zebulon Baird, 1830-1894
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Cerveris, Michael
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MGM Records - Public Domain
Williams, Audrey, 1923-1975
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Hammerschmidt, Andreas, 1611 or 1612-1675
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Arrhenius, Svante, 1859-1927
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Bahr-Mildenburg, Anna, 1872-1947
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Sidney kirkpatrick - CC BY-SA 3.0
Kirkpatrick, Sidney
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Liddell, John, Sir, 1794-1868
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Elizabeth Farnese, consort of Philip V, King of Spain, 1692-1766
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Josh Hallett at https://www.flickr.com/photos/hyku - CC BY-SA 2.0
Benson, Jodi
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Rebert -
Meyer, Russ, 1922-2004
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Hanfstaengl, Franz, 1804-1877
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unknown - Public Domain
Keys, Nelson
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Ives, Halsey Cooley, 1847-1911
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Ron Kroon / Anefo - CC BY-SA 3.0
Fournet, Jean
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NASA - Public Domain
Wright, William Hammond, 1871-1959
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Thorburn, Archibald, 1860-1935
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Brand, Joël 1906-1964
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William Boothby Selbie - Public Domain
Fairbairn, A. M. (Andrew Martin), 1838-1912
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Smanworld - CC BY-SA 4.0
Livesay, Dorothy, 1909-1996