Image from Wikimedia Commons
Ozeye - CC BY-SA 3.0
Bain News Service - Public Domain
unknown - Public Domain
unknown - CC BY-SA 4.0
user at project - Public Domain
Unknown author, must have been taken before 1911 - Public Domain
NASA - Public Domain
unknown photographer - Public Domain
James Barton Longacre - Public Domain
Unknown - Public Domain
Gage Skidmore - CC BY-SA 3.0
Studio Publicity - Public Domain
Public Domain
Nomo - CC BY-SA 3.0
Image from Wikimedia Commons
Ozeye - CC BY-SA 3.0
Exeter College (University of Oxford)
Image from Wikimedia Commons
Ventura, Charlie
Image from Wikimedia Commons
Abington, Mrs. (Frances Barton), 1737-1815
Image from Wikimedia Commons
Bain News Service - Public Domain
Gibbs, George, 1870-1942
Image from Wikimedia Commons
Ottman, John
Image from Wikimedia Commons
Tirpitz, Alfred von, 1849-1930.
Image from Wikimedia Commons
Berckheyde, Job Adriaenszoon
Image from Wikimedia Commons
Gorst, Eldon, Sir, 1861-1911
Image from Wikimedia Commons
unknown - Public Domain
Hamilton, James, 1786-1857
Image from Wikimedia Commons
unknown - CC BY-SA 4.0
Duval, Alexandre, 1767-1842
Image from Wikimedia Commons
Seymour, Robert, 1798-1836
Image from Wikimedia Commons
unknown - Public Domain
Southgate, William Wright, 1800-1849
Image from Wikimedia Commons
Le Tellier, Charles-Maurice, 1642-1710
Image from Wikimedia Commons
user at project - Public Domain
Mitchison, Naomi, 1897-1999
Image from Wikimedia Commons
Unknown author, must have been taken before 1911 - Public Domain
Whitman, Charles Otis, 1842-1910
Image from Wikimedia Commons
NASA - Public Domain
Musgrave, Story, 1935-
Image from Wikimedia Commons
unknown - Public Domain
Combs, Bert T., 1911-1991
Image from Wikimedia Commons
Constantinescu, Paul, 1909-1963
Image from Wikimedia Commons
Holloway, Sterling
Image from Wikimedia Commons
Callistus III, Pope, 1378-1458
Image from Wikimedia Commons
unknown photographer - Public Domain
Soper, Fred Lowe, 1893-1977
Image from Wikimedia Commons
James Barton Longacre - Public Domain
Duff, Mary Ann, 1795-1857
Image from Wikimedia Commons
Unknown - Public Domain
Tezuka, Osamu, 1928-1989
Image from Wikimedia Commons
Gregory, Caspar René, 1846-1917
Image from Wikimedia Commons
Gage Skidmore - CC BY-SA 3.0
Mansfield, Harvey Claflin, 1932-....
Image from Wikimedia Commons
Soto, Jesús Rafael, 1923-2005
Image from Wikimedia Commons
Studio Publicity - Public Domain
Jackson, Glenda
Image from Wikimedia Commons
Public Domain
Lewis, Bertha
Image from Wikimedia Commons
Holzer, Thomas
Image from Wikimedia Commons
Nomo - CC BY-SA 3.0
Lindsay, Arto