Image from Wikimedia Commons
Harris & Ewing - Public Domain
en - CC BY-SA 3.0
George Grantham Bain Collection (Library of Congress) - Public Domain
unknown - Public Domain
U.S. government photographer - Public Domain
Mathew Brady Levin Corot Handy - Public Domain
Jordan Klein - CC BY 2.0
Photo by Misr2009 - CC BY-SA 3.0
Chris7cn - CC BY-SA 3.0
Hubert von Herkomer - Public Domain
Public Domain
Willem van de Poll - CC BY-SA 3.0
Gage Skidmore - CC BY-SA 3.0
Image from Wikimedia Commons
Moseley, James W.
Image from Wikimedia Commons
Harris & Ewing - Public Domain
Creelman, James, 1859-
Image from Wikimedia Commons
en - CC BY-SA 3.0
Geffen, Aviv, 1973-
Image from Wikimedia Commons
George Grantham Bain Collection (Library of Congress) - Public Domain
Claxton, Kate, 1848-1924
Image from Wikimedia Commons
Mayall, J. E. (John Jabez Edwin), 1813-1901
Image from Wikimedia Commons
Ruffin, Thomas, 1787-1870
Image from Wikimedia Commons
unknown - Public Domain
Roeder, Ralph, 1890-1969
Image from Wikimedia Commons
Burmester, Willy, 1869-1933
Image from Wikimedia Commons
Cranston, Ruth.
Image from Wikimedia Commons
U.S. government photographer - Public Domain
Marcos, Imelda Romualdez, 1929-
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
Knott, J. Proctor (James Proctor), 1830-1911
Image from Wikimedia Commons
unknown - Public Domain
Britton, Thomas, 1654?-1714
Image from Wikimedia Commons
Jordan Klein - CC BY 2.0
O'Brien, Tim, 1954-
Image from Wikimedia Commons
Photo by Misr2009 - CC BY-SA 3.0
Maḥfūẓ, Najīb, 1911-2006
Image from Wikimedia Commons
Schleiden, M.J. (Matthias Jacob), 1804-1881
Image from Wikimedia Commons
Ballif, Claude, 1924-2004
Image from Wikimedia Commons
Roland Holst-van der Schalk, Henriëtte, 1869-1952
Image from Wikimedia Commons
Chris7cn - CC BY-SA 3.0
Angélica María 1944-
Image from Wikimedia Commons
Hubert von Herkomer - Public Domain
Lawson, Cecil Gordon, 1851-1882
Image from Wikimedia Commons
Public Domain
Catlett, Walter, 1889-1960
Image from Wikimedia Commons
Lutgardis, Saint, 1182-1246
Image from Wikimedia Commons
unknown - Public Domain
Clayton, John M. (John Middleton), 1796-1856
Image from Wikimedia Commons
Willem van de Poll - CC BY-SA 3.0
Lattre, Jean de, 1889-1952
Image from Wikimedia Commons
Dupuis, Thomas Sanders, 1733-1796
Image from Wikimedia Commons
Mitchell, Howard
Image from Wikimedia Commons
Bense, Max, 1910-1990
Image from Wikimedia Commons
Roos, Don
Image from Wikimedia Commons
Gage Skidmore - CC BY-SA 3.0
Ford, Harrison, 1942-....
Image from Wikimedia Commons
Smith, William H. (William Hugh), 1826-1899
Image from Wikimedia Commons
Mills, Ogden Livingston, 1884-