Image from Wikimedia Commons
Hugh Goldwin Rivière - Public Domain
unknown photographer - Public Domain
anonymous - CC BY-SA 3.0
Orange7745 - CC BY-SA 3.0
Eric Koch / Anefo - CC BY-SA 3.0
Artist unidentified - Public Domain
US Navy - Public Domain
Alan Liefting - Public Domain
Unknown - Public Domain
user at project - Public Domain
Sebastiaan ter Burg - CC BY 2.0
Public Domain
unknown - Public Domain
Sking - CC BY-SA 3.0
Engraved portrait by F. Holl, after A. de Salome. Also bears name of Walter L. Colls, who was a photogravure engraver. - Public Domain
Andymiah - CC BY-SA 3.0
Bain - Public Domain
Civil War glass negative collection (Library of Congress) - Public Domain
Image from Wikimedia Commons
Hugh Goldwin Rivière - Public Domain
Ainger, Alfred, 1837-1904
Image from Wikimedia Commons
unknown photographer - Public Domain
Lindberg, Oskar, 1887-1955
Image from Wikimedia Commons
anonymous - CC BY-SA 3.0
Emmanuel, Maurice, 1862-1938
Image from Wikimedia Commons
Chamberlain, Neville, 1869-1940
Image from Wikimedia Commons
Orange7745 - CC BY-SA 3.0
Kuspit, Donald B. (Donald Burton), 1935-
Image from Wikimedia Commons
Eric Koch / Anefo - CC BY-SA 3.0
Munster, Jan van 1939-
Image from Wikimedia Commons
Artist unidentified - Public Domain
Rouquette, Adrien, 1813-1887
Image from Wikimedia Commons
US Navy - Public Domain
Bowman, Josephine Beatrice, 1881-1971
Image from Wikimedia Commons
Hale, Barbara, 1922-...
Image from Wikimedia Commons
Alan Liefting - Public Domain
Douglas, Roger, 1937-
Image from Wikimedia Commons
Unknown - Public Domain
Amendola, Giovanni, 1882-1926
Image from Wikimedia Commons
Poliziano, Angelo, 1454-1494
Image from Wikimedia Commons
Sanborn, F. B. (Franklin Benjamin), 1831-1917
Image from Wikimedia Commons
user at project - Public Domain
Cherryh, C. J.
Image from Wikimedia Commons
Sebastiaan ter Burg - CC BY 2.0
French, Nicci.
Image from Wikimedia Commons
Pavlović Barilli, Milena 1909-1945
Image from Wikimedia Commons
Sahagún, Bernardino de, -1590
Image from Wikimedia Commons
Public Domain
Clarke, John, 1609-1676
Image from Wikimedia Commons
Comstock, Anthony, 1844-1915
Image from Wikimedia Commons
Livingston, Brockholst, 1757-1823
Image from Wikimedia Commons
unknown - Public Domain
Ridgway, Robert, 1850-1929
Image from Wikimedia Commons
Sharp, Thomas, 1693-1758
Image from Wikimedia Commons
Sking - CC BY-SA 3.0
Garay, Juan de 1528-1583
Image from Wikimedia Commons
Engraved portrait by F. Holl, after A. de Salome. Also bears name of Walter L. Colls, who was a photogravure engraver. - Public Domain
Seymour, Michael, Sir, 1802-1887
Image from Wikimedia Commons
Andymiah - CC BY-SA 3.0
Katz, Elihu, 1926-....
Image from Wikimedia Commons
Bain - Public Domain
Lynch, Arthur, 1861-1934
Image from Wikimedia Commons
Vasks, Pēteris, 1946-
Image from Wikimedia Commons
unknown - Public Domain
Neuberg, Joseph 1840-1926
Image from Wikimedia Commons
Civil War glass negative collection (Library of Congress) - Public Domain
Taylor, Walter Herron, 1838-1916
Image from Wikimedia Commons
Smejkal, Jan