Image from Wikimedia Commons
original uploader -
unknown - CC BY 3.0
unknown - Public Domain
William Davey (1844 – 1925). Published by The Rotary Photographic Co. Ltd of London, England who closed in April, 1916. - Public Domain
Unknown - Public Domain
Götz A. Primke - CC BY-SA 2.0
Maine State Archives (Augusta, Maine) - Public Domain
Post of Romania - Public Domain
Stephencdickson - CC BY-SA 4.0
Samuel Dreher Matlack - Public Domain
U.S. House of Representatives - Public Domain
Harper’s Weekly, January 5, 1861, (detail), Collection of U.S. House of Representatives - Public Domain
J. Ross Robertson - CC BY 2.5
Markus Poessel (Mapos - CC BY-SA 3.0
Grand Canyon NPS - Public Domain
original uploader - Public Domain
Image from Wikimedia Commons
original uploader -
Davis, Gladys Rockmore, 1901-1967
Image from Wikimedia Commons
unknown - CC BY 3.0
Marum, Ludwig, 1882-1934
Image from Wikimedia Commons
Whittlesey, Charles, 1808-1886
Image from Wikimedia Commons
unknown - Public Domain
Girard, Narcisse, 1797-1860
Image from Wikimedia Commons
Harris, William Cornwallis, Sir, 1807-1848
Image from Wikimedia Commons
William Davey (1844 – 1925). Published by The Rotary Photographic Co. Ltd of London, England who closed in April, 1916. - Public Domain
Fragson, Harry
Image from Wikimedia Commons
Braddon, Edward, Sir, 1829-1904
Image from Wikimedia Commons
Marshall, Thomas R. (Thomas Riley), 1854-1925
Image from Wikimedia Commons
Unknown - Public Domain
Kayssler, Friedrich, 1874-1945
Image from Wikimedia Commons
Vásáry, Tamás, 1933-
Image from Wikimedia Commons
Götz A. Primke - CC BY-SA 2.0
Ullrich, Frank
Image from Wikimedia Commons
Maine State Archives (Augusta, Maine) - Public Domain
Littlefield, Nathaniel Swett, 1804-1882
Image from Wikimedia Commons
Post of Romania - Public Domain
Dior, Christian
Image from Wikimedia Commons
Stephencdickson - CC BY-SA 4.0
Cracherode, Clayton Mordaunt, 1730-1799
Image from Wikimedia Commons
Madsen, Virginia, 1963-...
Image from Wikimedia Commons
De Camp, L. Sprague (Lyon Sprague), 1907-2000
Image from Wikimedia Commons
Samuel Dreher Matlack - Public Domain
Gibson, John Bannister, 1780-1853
Image from Wikimedia Commons
Porter, John Addison, 1856-1900
Image from Wikimedia Commons
Avery, Milton, 1885-1965
Image from Wikimedia Commons
U.S. House of Representatives - Public Domain
Gutiérrez, Luis V. (Luis Vicente), 1953-
Image from Wikimedia Commons
Baroja, Pío, 1872-1956
Image from Wikimedia Commons
Harper’s Weekly, January 5, 1861, (detail), Collection of U.S. House of Representatives - Public Domain
Jones, John James, 1824-1898
Image from Wikimedia Commons
Ford, Richard, 1796-1858
Image from Wikimedia Commons
J. Ross Robertson - CC BY 2.5
Ridout, Thomas, -1829
Image from Wikimedia Commons
Meader, George, 1907-1994
Image from Wikimedia Commons
Markus Poessel (Mapos - CC BY-SA 3.0
Greene, B. (Brian), 1963-
Image from Wikimedia Commons
Grand Canyon NPS - Public Domain
Loper, Bert, 1869-1949
Image from Wikimedia Commons
Marmot, Michael, 1945-
Image from Wikimedia Commons
Agnon, Shmuel Yosef, 1887-1970
Image from Wikimedia Commons
original uploader - Public Domain
Büchmann, Georg, 1822-1884