Image from Wikimedia Commons
William Alexander - Public Domain
unknown photographer - Public Domain
*:File:DorenceAtwaterOval.jpg - Public Domain
Public Domain
unknown - Public Domain
Bain News Service - Public Domain
Eva Zimmermann (:de:Gelsomina - CC BY-SA 3.0
Photo not credited in any obvious way - Public Domain
Tucker Collection - Public Domain
NBC - Public Domain
Peter Stevens, under commission of the United States Court of Appeals for the District of Columbia Circuit - Public Domain
R. Fenzl (+ vor 1940); Foto Peter GEymayer - Public Domain
Image from Wikimedia Commons
William Alexander - Public Domain
Alexander, William, 1767-1816
Image from Wikimedia Commons
unknown photographer - Public Domain
Harmon, Ernest Nason, 1894-1979
Image from Wikimedia Commons
McMorran, Henry, 1844-1929
Image from Wikimedia Commons
Staton, Dakota
Image from Wikimedia Commons
*:File:DorenceAtwaterOval.jpg - Public Domain
Atwater, Dorence, 1845-1910
Image from Wikimedia Commons
Public Domain
Berret, James G. (James Gabriel), 1815-1901
Image from Wikimedia Commons
Brande, William Thomas, 1788-1866
Image from Wikimedia Commons
unknown - Public Domain
Hare, William Hobart, 1838-1909
Image from Wikimedia Commons
Bain News Service - Public Domain
Merwin, Samuel, 1874-1936
Image from Wikimedia Commons
Eva Zimmermann (:de:Gelsomina - CC BY-SA 3.0
Peters, Norbert Walter
Image from Wikimedia Commons
Johannesen, Grant
Image from Wikimedia Commons
Newcastle, Henry Cavendish, Duke of, 1630-1691
Image from Wikimedia Commons
Schell, Orville
Image from Wikimedia Commons
Reibey, Thomas, 1821-1912
Image from Wikimedia Commons
Malcolm, Ian, Sir, 1868-1944
Image from Wikimedia Commons
unknown - Public Domain
Steere, Joseph Beal, 1842-1940
Image from Wikimedia Commons
Paldi, Israel
Image from Wikimedia Commons
Photo not credited in any obvious way - Public Domain
Squire, Watson C. (Watson Carvosso), 1838-1926
Image from Wikimedia Commons
Tucker Collection - Public Domain
Chatrian, Alexandre, 1826-1890
Image from Wikimedia Commons
unknown - Public Domain
Kuykendall, Dan
Image from Wikimedia Commons
Caprara, Giovanni-Battista, 1733-1810
Image from Wikimedia Commons
Negri, Pola, 1899-1987
Image from Wikimedia Commons
NBC - Public Domain
O'Keefe, Walter, 1900-1983
Image from Wikimedia Commons
Rowan, Archibald Hamilton, 1751-1834
Image from Wikimedia Commons
Peter Stevens, under commission of the United States Court of Appeals for the District of Columbia Circuit - Public Domain
Leventhal, Harold, 1915-1979
Image from Wikimedia Commons
R. Fenzl (+ vor 1940); Foto Peter GEymayer - Public Domain
Epstein, Julius, 1832-1926
Image from Wikimedia Commons
Wescott, John W. (John Wesley), 1849-1927
Image from Wikimedia Commons
Farrell, Warren.
Image from Wikimedia Commons
Morehead, C. S. (Charles Slaughter), 1802-1868
Image from Wikimedia Commons
Hale, Susan, 1833-1910