Image from Wikimedia Commons
anonymous - Public Domain
Powys Evans - Public Domain
Photo by Elson-Alexandre, Los Angeles - Public Domain
Public Domain
Philosopher nis - Public Domain
Charles Bird King and Thomas Sully, deceased. Photographs of the portraits by R Tayloe Cook - CC0 1.0
unknown - Public Domain
Unattributed - Public Domain
Eric Koch (ANEFO) - CC0 1.0
Mathew Brady Levin Corot Handy - Public Domain
author - Public Domain
Georges Biard - CC BY-SA 3.0
not stated - Public Domain
Unknown photographer of the Signal Corps - Public Domain
Mrs. St. Julien Ravenel (Harriott Horry Rutledge) (1832-1912), author. Houghton, Mifflin and Company (Boston, MA), publisher. - Public Domain
Rijksoverheid.nl - CC0 1.0
Image from Wikimedia Commons
anonymous - Public Domain
Hunter, Dard, 1883-1966
Image from Wikimedia Commons
Powys Evans - Public Domain
Holmes, C. J. (Charles John), 1868-1936
Image from Wikimedia Commons
Kisin, Evgeniĭ, 1971-
Image from Wikimedia Commons
Photo by Elson-Alexandre, Los Angeles - Public Domain
Hanna, William, 1910-2001
Image from Wikimedia Commons
Finn, Neil, 1958-
Image from Wikimedia Commons
Public Domain
Kornfeder, Joseph Zack
Image from Wikimedia Commons
Mozart, Leopold
Image from Wikimedia Commons
Joelson, Charles Samuel, 1916-1999
Image from Wikimedia Commons
Dönitz, Karl, 1891-1980
Image from Wikimedia Commons
Verdier, Jean, 1864-1940
Image from Wikimedia Commons
Public Domain
See, John, Sir, 1844-1907
Image from Wikimedia Commons
Philosopher nis - Public Domain
Marković, Mihailo, 1923-2010
Image from Wikimedia Commons
Dreschfeld, Julius, 1845-1907
Image from Wikimedia Commons
Charles Bird King and Thomas Sully, deceased. Photographs of the portraits by R Tayloe Cook - CC0 1.0
Tayloe, Benjamin Ogle, 1796-1868
Image from Wikimedia Commons
unknown - Public Domain
Flanders, Helen Hartness, 1890-1972
Image from Wikimedia Commons
Boucherett, Emilia J.
Image from Wikimedia Commons
Public Domain
Mores, Edward Rowe, 1730-1778
Image from Wikimedia Commons
Unattributed - Public Domain
Tinel, Edgar, 1854-1912
Image from Wikimedia Commons
Eric Koch (ANEFO) - CC0 1.0
Henkemans, Hans, 1913-1995
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
Harrison, Horace Harrison, 1829-1885
Image from Wikimedia Commons
author - Public Domain
Fagan, James Fleming, 1828-1893
Image from Wikimedia Commons
Georges Biard - CC BY-SA 3.0
Mitchell, Eddy
Image from Wikimedia Commons
not stated - Public Domain
Stoddard, Lothrop, 1883-1950
Image from Wikimedia Commons
Unknown photographer of the Signal Corps - Public Domain
McCaul, V. J. (Verne James), 1903-1968
Image from Wikimedia Commons
Mrs. St. Julien Ravenel (Harriott Horry Rutledge) (1832-1912), author. Houghton, Mifflin and Company (Boston, MA), publisher. - Public Domain
Lowndes, William, 1782-1822
Image from Wikimedia Commons
Uchimura, Kanzō, 1861-1930
Image from Wikimedia Commons
Leon, Herbert S. (Herbert Samuel), 1850-1926
Image from Wikimedia Commons
unknown - Public Domain
Groulx, Lionel, 1878-1967
Image from Wikimedia Commons
Rijksoverheid.nl - CC0 1.0
Opstelten, Ivo
Image from Wikimedia Commons
Roland, Philippe-Laurent, 1746-1816