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unknown - Public Domain
Paul Ruet - CC BY-SA 3.0
Debbie Freeman - CC0 1.0
Sławek - CC BY-SA 2.0
Contemporary photograph - Public Domain
Knight Foundation - CC BY-SA 2.0
Public Domain
Victorcouto - Public Domain
Jgg1992 - CC BY-SA 3.0
The Nobel Foundation - Public Domain
unnown - Public Domain
Robert D. Ward - Public Domain
Portrait is from an engraved miniature painted on ivory by Spornberg in Cheltenham, England, in 1810. - Public Domain
Artist unidentified - Public Domain
Not stated - Public Domain
US Government - Public Domain
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unknown - Public Domain
Medici, Giuseppe
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Paget, Stephen, 1855-1926
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Paul Ruet - CC BY-SA 3.0
Koopman, Ton, 1944-....
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Debbie Freeman - CC0 1.0
Hoffenberg, Mason.
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Sławek - CC BY-SA 2.0
Morgenstern, Janusz, 1922-2011
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Crossley, Ada, 1874-1929
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Contemporary photograph - Public Domain
Nevin, John Williamson, 1803-1886
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Knight Foundation - CC BY-SA 2.0
Mernit, Susan
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Robles Pezuela, Manuel, 1817-1862
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Public Domain
McNamara, Pat, 1894-1966
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Victorcouto - Public Domain
Faria e Sousa, Manuel de, 1590-1649
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Todd, John, 1911-2007
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Payne, Odie
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Dumas, Alexandre, 1802-1870
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Eilshemius, Louis M. (Louis Michel), 1864-1941
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Lovelace, William, -1577
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Jgg1992 - CC BY-SA 3.0
Sánchez Mejías, Ignacio 1891-1934
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Mahlangu, Esther, 1935-...
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Duncombe, Charles 1792-1867
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The Nobel Foundation - Public Domain
Erlanger, Joseph, 1874-1965
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unnown - Public Domain
Caswell, Richard, 1729-1789
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John, of Austria, 1547-1578
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Powis, Edward Herbert, Earl of, 1785-1848
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Pollock, Walter Herries, 1850-1926
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Robert D. Ward - Public Domain
Boyce, Michael, Sir, 1943-
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Vaudoyer, Léon, 1803-1872
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Portrait is from an engraved miniature painted on ivory by Spornberg in Cheltenham, England, in 1810. - Public Domain
Parish, David, -1826
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Artist unidentified - Public Domain
Willson, Forceythe, 1837-1867
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Not stated - Public Domain
Windsor, H. H. (Henry Haven), 1859-1924
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US Government - Public Domain
Lloyd, Lola Maverick, 1875-1944