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Public Domain
Cactus And Succulent Society Of America - CC BY-SA 2.5
Wyly Martin (1776–1842) - Public Domain
Frederick Grosse (1828-1894) - Public Domain
Etowah Valley Historical Society - Public Domain
Max Liebermann - Public Domain
United States Congress - Public Domain
Nathaniel Fish Moore - Public Domain
Napoleon Sarony Giuseppe Fagnani - Public Domain
régine debatty - CC BY-SA 2.0
United States Senate Historical Office - Public Domain
zeitgenössischer Stecher, 1860 - Public Domain
John Ross Browne - Public Domain
unknown - Public Domain
Warren Browne - Public Domain
Minutarus - CC BY-SA 3.0
Ed Schipul - CC BY-SA 2.0
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Whitney, J.D. (Josiah Dwight), 1819-1896
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Public Domain
Paul, Alice, 1885-1977
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Cactus And Succulent Society Of America - CC BY-SA 2.5
Pittier, Henri, 1857-1950
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Wyly Martin (1776–1842) - Public Domain
Travis, William Barret, 1809-1836
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Roberts, R. Silyn (Robert Silyn), 1871-1930
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Frederick Grosse (1828-1894) - Public Domain
Barkly, Henry, Sir, 1815-1898
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Etowah Valley Historical Society - Public Domain
Stiles, William H. (William Henry), 1809-1865
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Chandler, Joseph R. (Joseph Ripley), 1792-1880
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Moravia, Alberto, 1907-1990
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Max Liebermann - Public Domain
Cassirer, Bruno, 1872-1941
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Chaney, Lon, Jr., 1906-1973
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Gill, Moses, 1734-1800
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United States Congress - Public Domain
Schock, Aaron, 1981-
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Tuckney, Anthony, 1599-1670
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Nathaniel Fish Moore - Public Domain
Moore, Nathaniel Fish, 1782-1872
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Smith, William N. H. (William Nathan Harrell), 1812-1889
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Napoleon Sarony Giuseppe Fagnani - Public Domain
Williams, Eleazer, 1787?-1858
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Asam, Cosmas Damian, 1686-1739
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régine debatty - CC BY-SA 2.0
Weegee, 1899-1968
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United States Senate Historical Office - Public Domain
Howell, Robert Beecher, 1864-1933
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zeitgenössischer Stecher, 1860 - Public Domain
Lewald, August, 1792-1871
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John Ross Browne - Public Domain
Mowry, Sylvester, 1830-1871
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Davies, Marion, 1897-1961
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unknown - Public Domain
Davenport, Herbert Joseph, 1861-1931
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Warren Browne - Public Domain
Smith, William Benjamin, 1850-1934
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Darrieux, Danielle, 1917-....
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Minutarus - CC BY-SA 3.0
Berger, Wilhelm G., 1929-1993
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Condé, Louis-Joseph de Bourbon, prince de, 1736-1818
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Ed Schipul - CC BY-SA 2.0
Wayans, Damon
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Bock, Carl Ernst, 1809-1874