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Smithsonian Institution - Public Domain
Carl Mittag - Public Domain
Heinrich Hofmann - Public Domain
Public Domain
E. V. Eddis (artist); W. D. (engraver) - Public Domain
unknown - Public Domain
Breitkopf, London - Public Domain
user at project - Public Domain
Pierre Petit - Public Domain
From a crayon drawing by Samuel W. Rowse - Public Domain
Mtbrown8 - CC BY 3.0
ABC Television - Public Domain
CBS photo by Walt Davis -
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Kaiser, F. (Frederik), 1808-1872
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McCook, Henry C. (Henry Christopher), 1837-1911
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Smithsonian Institution - Public Domain
Wyant, A. H. (Alexander Helwig), 1836-1892
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Carl Mittag - Public Domain
Marx, Adolf Bernhard, 1795-1866
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Heinrich Hofmann - Public Domain
Hofmann, Heinrich (Johann Michael Ferdinand Heinrich), 1824-1911
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Carracci, Lodovico, 1555-1619
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Public Domain
Parker, Michael, 1949-....
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E. V. Eddis (artist); W. D. (engraver) - Public Domain
Sabine, Joseph, 1770-1837
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Tibbets, Paul W. (Paul Warfield), 1915-2007
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Nardi, Gregorio, 1964-
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Cooper, William, 1754-1809
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Public Domain
Butor, Michel
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Kirkland, John Thornton, 1770-1840
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unknown - Public Domain
Allen, William F. (William Fitch), 1808-1878
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Wright, R. Ramsay (Robert Ramsay), 1852-1933
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Breitkopf, London - Public Domain
Nachèz, Tivadar, 1859-1930
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Parker, Matthew, 1504-1575
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user at project - Public Domain
Allington, Edward
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Pierre Petit - Public Domain
Bouchard, Ch. (Charles), 1837-1915
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Sacasa, Juan Bautista, 1874-1946
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unknown - Public Domain
Barton, Clara, 1821-1912
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unknown - Public Domain
Calvi, Roberto, 1920-1982
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Van der Gucht, Benjamin, -1794
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From a crayon drawing by Samuel W. Rowse - Public Domain
Bushnell, Horace, 1802-1876
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Mtbrown8 - CC BY 3.0
Odum, Howard T. (Howard Thomas), 1924-2002
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ABC Television - Public Domain
Begley, Ed. 1901-1970
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Eckert, Fred J., 1941-
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unknown - Public Domain
Tcherepnin, Nikolai
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CBS photo by Walt Davis -
Halop, Florence, 1923-1986
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Dase, Zacharias 1824-1861