Image from Wikimedia Commons
CBS Television - Public Domain
Adrien Barrère - Public Domain
unknown -
Jindřich Nosek (NoJin - CC BY-SA 3.0
Photo from Aleksander Janta archive, non specified. -
Emery Walker - Public Domain
Bain - Public Domain
unknown - Public Domain
Public Domain
anonymous - Public Domain
author - Public Domain
Undetermined -
Dorian.bayol - CC BY-SA 3.0
*:File:Louise_and_Neith_Nevelson,_c.1965.gif - Public Domain
Marian Albright Schenk - Public Domain
Contemporary photograph - Public Domain
Franz Xaver Setzer - Public Domain
Image from Wikimedia Commons
Leak, Bill, 1956-
Image from Wikimedia Commons
CBS Television - Public Domain
Hunt, Marsha, 1917-....
Image from Wikimedia Commons
Adrien Barrère - Public Domain
Mayol, 1872-1941
Image from Wikimedia Commons
unknown -
White, Patrick, 1912-1990
Image from Wikimedia Commons
Portmore, Charles Colyear, Earl of, 1700-1785
Image from Wikimedia Commons
Constable, John, 1776-1837
Image from Wikimedia Commons
Jindřich Nosek (NoJin - CC BY-SA 3.0
Kolíbal, Stanislav
Image from Wikimedia Commons
Cunningham, Allan, 1784-1842
Image from Wikimedia Commons
Stewart, William H., 1921-2008
Image from Wikimedia Commons
Calcagnini, Celio, 1479-1541
Image from Wikimedia Commons
Photo from Aleksander Janta archive, non specified. -
Retinger, J.H. (Joseph Hieronim), 1888-1960
Image from Wikimedia Commons
Emery Walker - Public Domain
Allingham, William, 1824-1889
Image from Wikimedia Commons
Guevara, Nacha, 1940-....
Image from Wikimedia Commons
Kirkland, John Thornton, 1770-1840
Image from Wikimedia Commons
Bain - Public Domain
Alexander, Robert, 1863-1941
Image from Wikimedia Commons
unknown - Public Domain
Miklukho-Maklaĭ, Nikolaĭ Nikolaevich, 1846-1888
Image from Wikimedia Commons
Public Domain
Myers, Elijah E., 1832-1909
Image from Wikimedia Commons
anonymous - Public Domain
Tubin, Eduard, 1905-1982
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author - Public Domain
McLean, Nathaniel, 1815-1905
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Smith, Thomas, 1609-1642
Image from Wikimedia Commons
Carson, Rachel, 1907-1964
Image from Wikimedia Commons
Public Domain
Hartness, James, 1861-1934
Image from Wikimedia Commons
Undetermined -
Kettle, Tom, 1880-1916
Image from Wikimedia Commons
Dorian.bayol - CC BY-SA 3.0
Soulages, Pierre, 1919-....
Image from Wikimedia Commons
Ward, Ed, 1948-
Image from Wikimedia Commons
*:File:Louise_and_Neith_Nevelson,_c.1965.gif - Public Domain
Nevelson, Louise, 1899-1988
Image from Wikimedia Commons
unknown - Public Domain
Dilthey, Karl, 1839-1907
Image from Wikimedia Commons
Marian Albright Schenk - Public Domain
Mather, Stephen Tyng, 1867-1930
Image from Wikimedia Commons
Contemporary photograph - Public Domain
McGiffert, Arthur Cushman, 1861-1933
Image from Wikimedia Commons
Franz Xaver Setzer - Public Domain
Schwarz, Vera, 1888-1964