Image from Wikimedia Commons
Walter Barlow Stevens, author. S. J. Clarke Publishing Co. (St. Louis), publisher. - Public Domain
George Grantham Bain Collection (Library of Congress) - Public Domain
U.S. Government Printing Office - Public Domain
Stanley L. Wood (1866-1928) - Public Domain
US Government Printing Office (Washington, DC), publisher. - Public Domain
Roferbia - CC BY-SA 4.0
unknown - Public Domain
Elias Loomis or H. A. Newton - Public Domain
AdMeskens - CC BY-SA 3.0
Consuelo Kanaga -
''The Hindu'' - Public Domain
Anonymous - Public Domain
Image from Wikimedia Commons
Johnson, William, 1715-1774
Image from Wikimedia Commons
Walter Barlow Stevens, author. S. J. Clarke Publishing Co. (St. Louis), publisher. - Public Domain
Hogan, John, 1805-1892
Image from Wikimedia Commons
George Grantham Bain Collection (Library of Congress) - Public Domain
Dana, John Cotton, 1856-1929
Image from Wikimedia Commons
Konoe, Iezane, 1179-1243
Image from Wikimedia Commons
Zuber, Henri, 1844-1909
Image from Wikimedia Commons
Hirth, Georg, 1841-1916
Image from Wikimedia Commons
U.S. Government Printing Office - Public Domain
Tupper, Stanley Roger
Image from Wikimedia Commons
Trillin, Calvin
Image from Wikimedia Commons
Stanley L. Wood (1866-1928) - Public Domain
Wood, Stanley L., 1866-1928
Image from Wikimedia Commons
US Government Printing Office (Washington, DC), publisher. - Public Domain
Marcantonio, Vito, 1902-1954
Image from Wikimedia Commons
Roferbia - CC BY-SA 4.0
Wolff, Egon, 1926-....
Image from Wikimedia Commons
unknown - Public Domain
Pope, Nathaniel, 1784-1850
Image from Wikimedia Commons
unknown - Public Domain
Reeder, Andrew H. (Andrew Horatio), 1807-1864
Image from Wikimedia Commons
Talbot, Catherine, 1721-1770
Image from Wikimedia Commons
Elias Loomis or H. A. Newton - Public Domain
Loomis, Elias, 1811-1889
Image from Wikimedia Commons
unknown - Public Domain
O'Farrell, Jasper, 1817-1875
Image from Wikimedia Commons
AdMeskens - CC BY-SA 3.0
Chambers, William, 1800-1883
Image from Wikimedia Commons
Consuelo Kanaga -
Rothko, Mark, 1903-1970
Image from Wikimedia Commons
D'Albert, Eugen, 1864-1932
Image from Wikimedia Commons
McCarthy, Eugene J., 1916-2005
Image from Wikimedia Commons
''The Hindu'' - Public Domain
Ramaswami Aiyar, C.P. (Chetpat Pattabhirama), 1879-1966
Image from Wikimedia Commons
Favero, Mafalda
Image from Wikimedia Commons
Morris, Alexander, 1826-1889
Image from Wikimedia Commons
Anonymous - Public Domain
Spotted Elk, Molly, 1903-1977
Image from Wikimedia Commons
Eeden, Marcel van 1965-
Image from Wikimedia Commons
Schut, Cornelis, 1597-1655
Image from Wikimedia Commons
Carter, Chris, 1957-....
Image from Wikimedia Commons
Hughes, Gareth, 1894-1965
Image from Wikimedia Commons
Maeztu, Ramiro De
Image from Wikimedia Commons
Frohman, Daniel, 1851-1940