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Smithsonian Institution - Public Domain
unknown - Public Domain
Unattributed - Public Domain
Contemporary portrait - Public Domain
Post of Ecuador - Public Domain
user at project - CC0 1.0
State Historical Society of Iowa (Des Moines, IA). - Public Domain
Mathew B. Brady and Levin Corbin Handy Photographic Studios. - Public Domain
author - Public Domain
Sven Rosborn - CC BY-SA 3.0
Liona Boyd (rights-holder) / Keith Williamson (photographer) - CC BY-SA 3.0
Hernando Sanchez -
Godfrey Kneller -
Mathew Brady (1822-1896) and Levin C. Handy (1855-1932). - Public Domain
Cherishthemoment - CC BY 2.0
Image from Wikimedia Commons
Rodrigues, J. Barbosa (João Barbosa), 1842-1909
Image from Wikimedia Commons
Smithsonian Institution - Public Domain
Turner, Abby H. (Abby Howe), 1875-1957
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unknown - Public Domain
Maliszewski, Witold
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Unattributed - Public Domain
Barnay, Ludwig, 1842-1924
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Pabst, G. W. (Georg Wilhelm), 1885-1967
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Black, Delbert D. (Delbert Defrece), 1922-2000
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Jeritza, Maria
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Ellerbe, William Haselden, 1862-1899
Image from Wikimedia Commons
Contemporary portrait - Public Domain
Arundel, Philip Howard, Earl of, Saint, 1557-1595
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Post of Ecuador - Public Domain
Larrea Holguín, Juan.
Image from Wikimedia Commons
unknown - Public Domain
Duhring, Louis A., 1845-1913
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Lucas, George A., 1824-1909
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unknown - Public Domain
Canto, Estela
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user at project - CC0 1.0
Kaneko, Jun, 1942-
Image from Wikimedia Commons
State Historical Society of Iowa (Des Moines, IA). - Public Domain
Clark, Lincoln, 1800-1886
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Haddon, Alfred C. (Alfred Cort), 1855-1940
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Repton, J. Adey (John Adey), 1775-1860
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Mathew B. Brady and Levin Corbin Handy Photographic Studios. - Public Domain
Bundy, Solomon, 1823-1889
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author - Public Domain
Eckart, Dietrich, 1868-1923
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Signorelli, Luca, 1441?-1523
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Sven Rosborn - CC BY-SA 3.0
Thiers, Adolphe, 1797-1877
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Allen, James Cameron, 1822-1912
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Liona Boyd (rights-holder) / Keith Williamson (photographer) - CC BY-SA 3.0
Boyd, Liona
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Hernando Sanchez -
Torres, Camilo, 1929-1966
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Godfrey Kneller -
Monnoyer, Jean Baptiste, approximately 1636-1699
Image from Wikimedia Commons
Mathew Brady (1822-1896) and Levin C. Handy (1855-1932). - Public Domain
Steele, William Randolph, 1842-1901
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unknown - Public Domain
Arndt, Rudolf, 1835-1900
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Riolan, Jean, 1580-1657
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Gill, Moses, 1734-1800
Image from Wikimedia Commons
Cherishthemoment - CC BY 2.0
Whalum, Kirk