Image from Wikimedia Commons
Fabio Venni - CC BY-SA 2.0
Adolf Dauthage - Public Domain
zh-hant - Public Domain
Tomás Mur - Public Domain
Public Domain
Unknown - photo before 1923 - Public Domain
w -
unknown - Public Domain
David McNeese - CC BY-SA 3.0
w:fr:Eugène Pirou - Public Domain
Steve Kwak - CC BY 2.0
Kuhlmann /MSC - CC BY 3.0
Mathew Brady Levin Corot Handy - Public Domain
General Tulstein W D Twigg - CC BY-SA 3.0
Fred Palumbo, World Telegram staff photographer - Public Domain
Royden Dixon for the Office of War Information - Public Domain
Image from Wikimedia Commons
Fabio Venni - CC BY-SA 2.0
Cotton, Joseph
Image from Wikimedia Commons
Solvay, Ernest, 1838-1922
Image from Wikimedia Commons
Adolf Dauthage - Public Domain
Herrmann, Carl, 1816-1887
Image from Wikimedia Commons
zh-hant - Public Domain
Rankin, Karl Lott
Image from Wikimedia Commons
Tomás Mur - Public Domain
Marroquín, Francisco, -1563
Image from Wikimedia Commons
Public Domain
Trowbridge, W.R.H. (William Rutherford Hayes), 1866-1938
Image from Wikimedia Commons
Unknown - photo before 1923 - Public Domain
Chittenden, Alice Brown, 1859 or 1860-1944
Image from Wikimedia Commons
w -
Cummings, Bart, 1927-
Image from Wikimedia Commons
Ries, Ferdinand, 1784-1838
Image from Wikimedia Commons
unknown - Public Domain
Miller, Alice Duer, 1874-1942
Image from Wikimedia Commons
David McNeese - CC BY-SA 3.0
Nelson, Donna J., 1954-
Image from Wikimedia Commons
Ursins, Marie-Anne de la Tremoille, princesse des, 1642-1722
Image from Wikimedia Commons
w:fr:Eugène Pirou - Public Domain
Schmitt, Florent, 1870-1958
Image from Wikimedia Commons
Sheldon, Charles M., 1857-1946
Image from Wikimedia Commons
Steve Kwak - CC BY 2.0
McGraw, Tim, 1967-
Image from Wikimedia Commons
Palmer, Ernest, 1885-1978
Image from Wikimedia Commons
Baxter, Percival Proctor, 1876-1969
Image from Wikimedia Commons
Thornton, John, 1720-1790
Image from Wikimedia Commons
Marsham, John, Sir, 1602-1685
Image from Wikimedia Commons
Azara, José Nicolás de, marqués de Nibbiano, 1730 or 1731-1804
Image from Wikimedia Commons
Kuhlmann /MSC - CC BY 3.0
Gates, Bill, 1955-....
Image from Wikimedia Commons
Smith, Charles Ferguson, 1807-1862
Image from Wikimedia Commons
Mathew Brady Levin Corot Handy - Public Domain
Knott, J. Proctor (James Proctor), 1830-1911
Image from Wikimedia Commons
unknown - Public Domain
Richards, Linda, 1841-1930
Image from Wikimedia Commons
Brooks, Romaine
Image from Wikimedia Commons
Mactavish, W. (William), m. 1870
Image from Wikimedia Commons
General Tulstein W D Twigg - CC BY-SA 3.0
Saville, John, 1916-2009
Image from Wikimedia Commons
Fred Palumbo, World Telegram staff photographer - Public Domain
Schuyler, Philippa, 1932-1967
Image from Wikimedia Commons
Julian, Saint, Bishop of Cuenca, 1127-1208
Image from Wikimedia Commons
Royden Dixon for the Office of War Information - Public Domain
Teagle, Walter C. (Walter Clark), 1878-1962