Image from Wikimedia Commons
Unknown (photo studio "Walery, Paris") - Public Domain
project canterbury - Public Domain
Ferdinand Schmutzer - Public Domain
Esby - CC BY-SA 4.0
US gov - Public Domain
Contemporary portrait - Public Domain
Olivier Strecker - CC BY-SA 3.0
Photo by Wendy Hower Livingston, courtesy of the :en:Nasher Museum of Art -
unknown - Public Domain
NOAA - Public Domain
Unknown/Desconocido - Public Domain
USGov-Congress - Public Domain
Public Domain
Image from Wikimedia Commons
Unknown (photo studio "Walery, Paris") - Public Domain
Wague, Georges
Image from Wikimedia Commons
Perry, Lilla Cabot, 1848-1933
Image from Wikimedia Commons
project canterbury - Public Domain
Whittingham, William Rollinson, 1805-1879
Image from Wikimedia Commons
Claiborne, William C. C. (William Charles Cole), 1775-1817
Image from Wikimedia Commons
Caceres, Ernie
Image from Wikimedia Commons
Ferdinand Schmutzer - Public Domain
Salten, Felix, 1869-1945
Image from Wikimedia Commons
Ouspenskaya, Maria, 1876-1949
Image from Wikimedia Commons
Esby - CC BY-SA 4.0
Terasawa, Buichi, 1955-
Image from Wikimedia Commons
US gov - Public Domain
Phelps, Samuel Shethar, 1793-1855
Image from Wikimedia Commons
Barron, James, 1769-1851
Image from Wikimedia Commons
Price, E. Hoffmann
Image from Wikimedia Commons
Contemporary portrait - Public Domain
Miller, Samuel, 1769-1850
Image from Wikimedia Commons
Olivier Strecker - CC BY-SA 3.0
Venantini, Venantino, 1930-...
Image from Wikimedia Commons
Photo by Wendy Hower Livingston, courtesy of the :en:Nasher Museum of Art -
Johnson, Rashid, 1977-....
Image from Wikimedia Commons
unknown - Public Domain
Perry, Mr. (William Hayne), 1839-1902
Image from Wikimedia Commons
Liston, Sonny, 1932-1970
Image from Wikimedia Commons
Scott, Hugh Lenox, 1853-1934
Image from Wikimedia Commons
Bugental, James F. T.
Image from Wikimedia Commons
Sansom, Gareth, 1939-
Image from Wikimedia Commons
Johnson, William H., 1901-1970
Image from Wikimedia Commons
Liddy, G. Gordon
Image from Wikimedia Commons
NOAA - Public Domain
Chapman, Sydney, 1888-1970
Image from Wikimedia Commons
Gordon, Richard
Image from Wikimedia Commons
Unknown/Desconocido - Public Domain
Cabral, José María, 1816-1899
Image from Wikimedia Commons
USGov-Congress - Public Domain
Ecton, Zales N. (Zales Nelson), 1898-1961
Image from Wikimedia Commons
Contarini, Gasparo, 1483-1542
Image from Wikimedia Commons
Jennings, Ivor, Sir, 1903-1965
Image from Wikimedia Commons
Sieveking, Edward H. (Edward Henry), 1816-1904
Image from Wikimedia Commons
Public Domain
Abba, Marta.
Image from Wikimedia Commons
Francis, Trevor, 1954-