Image from Wikimedia Commons
unknown - Public Domain
SRI International - CC BY-SA 3.0
Portlandjim - Public Domain
Detroit Publishing Company - Public Domain
Simon Benjamin -
user at project - Public Domain
Bain News Service (publisher) - Public Domain
. - Public Domain
Thomas Phillips - Public Domain
Bisson Frères - Public Domain
No photographer named. - Public Domain
Image from Wikimedia Commons
Heysham, John, 1753-1834
Image from Wikimedia Commons
unknown - Public Domain
Fletcher, Donald
Image from Wikimedia Commons
SRI International - CC BY-SA 3.0
Gibson, Weldon B., 1917-
Image from Wikimedia Commons
unknown - Public Domain
Walker, Prentiss, 1917-1998
Image from Wikimedia Commons
unknown - Public Domain
Archibald, Jules François, 1856-1919
Image from Wikimedia Commons
Pistorius, Johann, 1546-1608
Image from Wikimedia Commons
Staples, Waller R. (Waller Redd), 1826-1897
Image from Wikimedia Commons
Lovins, Amory B., 1947-
Image from Wikimedia Commons
Inoue, Kaoru, 1836-1915
Image from Wikimedia Commons
unknown - Public Domain
Caron, George Robert, 1919-1995
Image from Wikimedia Commons
Portlandjim - Public Domain
Chouinard, Yvon, 1938-....
Image from Wikimedia Commons
Detroit Publishing Company - Public Domain
Blue, Victor, 1865-1928
Image from Wikimedia Commons
Söderberg, Hjalmar, 1869-1941
Image from Wikimedia Commons
Simon Benjamin -
Deutsch, David, 1953-...
Image from Wikimedia Commons
user at project - Public Domain
Marschall von Bieberstein, Adolf Hermann Freiherr 1842-1912
Image from Wikimedia Commons
Bain News Service (publisher) - Public Domain
Samuel, Herbert Louis Samuel, Viscount, 1870-1963
Image from Wikimedia Commons
Battle, Kathleen
Image from Wikimedia Commons
unknown - Public Domain
Clarke, John S. (John Sleeper), 1833-1899
Image from Wikimedia Commons
Bell, Johannes.
Image from Wikimedia Commons
Barney, Natalie Clifford
Image from Wikimedia Commons
Iosif, Ștefan O. (Ștefan Octavian), 1875-1913
Image from Wikimedia Commons
Capuana, Luigi, 1839-1915
Image from Wikimedia Commons
. - Public Domain
Solera, Temistocle, 1815-1878
Image from Wikimedia Commons
Thomas Phillips - Public Domain
Wilson, Daniel, 1778-1858
Image from Wikimedia Commons
Bisson Frères - Public Domain
Chevalier, Michel, 1806-1879
Image from Wikimedia Commons
No photographer named. - Public Domain
Carrington, Elaine Sterne
Image from Wikimedia Commons
unknown - Public Domain
Farquhar, Percival, 1864-1953
Image from Wikimedia Commons
unknown - Public Domain
Procter, John Robert, 1844-1903
Image from Wikimedia Commons
unknown - Public Domain
Lucas, John B. C. (John Baptiste Charles), -1842
Image from Wikimedia Commons
Edwards, John, 1805-1894