Image from Wikimedia Commons
Nadar (1820-1910) - Public Domain
L. H. Jones - Public Domain
Chandos Fulton - Public Domain
unknown photographer - Public Domain
--- -
Francesco Falaschi - CC BY-SA 3.0
Eero Järnefelt - Public Domain
Vieira Lusitano & Jean Daullé - Public Domain
unknown - Public Domain
:w:en:Mathew Brady (1822-1896) or :w:en:Levin Corbin Handy (1855–1932) - Public Domain
НФ - Public Domain
Mary Grace - Public Domain
Donato Francesco De Vivo (1831 - after 1890) - Public Domain
An Illustrated Congressional Manual. The United States Red Book, 1896, (detail), Collection of U.S. House of Representatives - Public Domain
Jack1956 - CC0 1.0
Pleyer Photo / ETH Zürich - CC BY-SA 3.0
Archives of American Art, Smithsonian Institution. - Public Domain
Flickr contributor Steamtalks - CC BY-SA 2.0
U.S. Air Force photo by Staff Sgt. Stephen J. Otero - Public Domain
James Russell (1809 - 1899) and Sons - Public Domain
Image from Wikimedia Commons
Nadar (1820-1910) - Public Domain
Beauvoir, Roger de 1806-1866
Image from Wikimedia Commons
L. H. Jones - Public Domain
Jones, Roger, 1789-1852
Image from Wikimedia Commons
Chandos Fulton - Public Domain
Covert, James W. (James Way), 1842-1910
Image from Wikimedia Commons
unknown photographer - Public Domain
Wislizenus, F. A. (Frederick Adolph), 1810-1889
Image from Wikimedia Commons
--- -
Rampolokeng, Lesego.
Image from Wikimedia Commons
Francesco Falaschi - CC BY-SA 3.0
Falaschi, Arturo
Image from Wikimedia Commons
Eero Järnefelt - Public Domain
Wrede, Mathilda, 1864-1928
Image from Wikimedia Commons
Vieira Lusitano & Jean Daullé - Public Domain
Seixas, Carlos, 1704-1742
Image from Wikimedia Commons
unknown - Public Domain
Demaray, Arthur E. (Arthur Edward), 1887-1958
Image from Wikimedia Commons
:w:en:Mathew Brady (1822-1896) or :w:en:Levin Corbin Handy (1855–1932) - Public Domain
Marsh, Othniel Charles, 1831-1899
Image from Wikimedia Commons
Ashida, Hitoshi, 1887-1959
Image from Wikimedia Commons
НФ - Public Domain
Tosti, Sir Paolo, 1846-1916
Image from Wikimedia Commons
Mary Grace - Public Domain
Bradbury, Thomas, 1677-1759
Image from Wikimedia Commons
Blackmun, Harry A. (Harry Andrew), 1908-1999
Image from Wikimedia Commons
Donato Francesco De Vivo (1831 - after 1890) - Public Domain
Cortesi, Antonio, 1796-1879
Image from Wikimedia Commons
Miles, Suzanne W.
Image from Wikimedia Commons
Gardner, Alan Gardner, Baron, 1742-1809
Image from Wikimedia Commons
An Illustrated Congressional Manual. The United States Red Book, 1896, (detail), Collection of U.S. House of Representatives - Public Domain
Wilson, Edgar, 1861-
Image from Wikimedia Commons
Jack1956 - CC0 1.0
Emery, Dick
Image from Wikimedia Commons
Pleyer Photo / ETH Zürich - CC BY-SA 3.0
Stiefel, Eduard L., 1909-
Image from Wikimedia Commons
Ferrant Fischermans, Alejandro 1843-1917
Image from Wikimedia Commons
Archives of American Art, Smithsonian Institution. - Public Domain
Warneke, Heinz (Heinrich), 1895-1983
Image from Wikimedia Commons
Baerle, Caspar van, 1584-1648
Image from Wikimedia Commons
Anderson, Christopher, 1782-1852
Image from Wikimedia Commons
Rukhin, Evgeniĭ, 1943-1976
Image from Wikimedia Commons
Flickr contributor Steamtalks - CC BY-SA 2.0
Minsky, Marvin Lee, 1927-
Image from Wikimedia Commons
Einstein, Elsa, 1876-1936
Image from Wikimedia Commons
U.S. Air Force photo by Staff Sgt. Stephen J. Otero - Public Domain
Lagasse, Emeril
Image from Wikimedia Commons
James Russell (1809 - 1899) and Sons - Public Domain
Dannreuther, Edward, 1844-1905
Image from Wikimedia Commons
Bradshaw, John, 1602-1659