Image from Wikimedia Commons
unknown - Public Domain
Penale52 - CC BY-SA 3.0
Gage Skidmore - CC BY-SA 3.0
US Government Printing Office - Public Domain
Doug Meyer - Public Domain
Bastin - CC BY-SA 3.0
U.S. Air Force photo - Public Domain
Ferenc Kozmata - Public Domain
from an engraving of by Willam Skelton from drawing by John Jackson - Public Domain
Internet Archive Book Images -
Public Domain
uncertain - Public Domain
Nationaal Archief, Den Haag, Rijksfotoarchief: Fotocollectie Algemeen Nederlands Fotopersbureau (ANEFO), 1945-1989 - negatiefstroken zwart/wit, nummer toegang 2.24.01.05, bestanddeelnummer 925-9062 -
author - Public Domain
Image from Wikimedia Commons
unknown - Public Domain
Shufeldt, Robert W. (Robert Wilson), 1850-1934
Image from Wikimedia Commons
Fichet, Pierre
Image from Wikimedia Commons
Penale52 - CC BY-SA 3.0
Collins, Jimmy, 1870-1943
Image from Wikimedia Commons
Morse, David, 1953-....
Image from Wikimedia Commons
unknown - Public Domain
Juhl, Finn, 1912-1989
Image from Wikimedia Commons
Gage Skidmore - CC BY-SA 3.0
Hannah, John, 1962-
Image from Wikimedia Commons
Lipman, Jacob Goodale, 1874-1939
Image from Wikimedia Commons
Luther, Martin, 1483-1546
Image from Wikimedia Commons
US Government Printing Office - Public Domain
Marks, Marc Lincoln, 1927-2018
Image from Wikimedia Commons
Doug Meyer - Public Domain
Galloway, Joseph L.
Image from Wikimedia Commons
Bastin - CC BY-SA 3.0
Hannan, Daniel
Image from Wikimedia Commons
U.S. Air Force photo - Public Domain
Jones, David M., 1913-
Image from Wikimedia Commons
US Government Printing Office - Public Domain
Roberts, Ray, 1913-1992
Image from Wikimedia Commons
Sherman, Vincent
Image from Wikimedia Commons
Ferenc Kozmata - Public Domain
Cossmann, Bernhard, 1822-1910
Image from Wikimedia Commons
from an engraving of by Willam Skelton from drawing by John Jackson - Public Domain
Smith, John Thomas, 1766-1833
Image from Wikimedia Commons
Internet Archive Book Images -
Catchings, T. C. (Thomas Clendinen), 1847-1927
Image from Wikimedia Commons
unknown - Public Domain
Reynolds, Alexander Welch, 1817-1876
Image from Wikimedia Commons
Walker, Kenneth N., 1898-1945
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Public Domain
Rice, James Clay, 1829-1864
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unknown - Public Domain
Aragón, Pascual de 1626-1677
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Pasquier, Étienne, 1529-1615
Image from Wikimedia Commons
Kelly, Michael, 1762-1826
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uncertain - Public Domain
Alenza y Nieto, Leonardo, 1807-1845
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Taylor, Maxwell D. (Maxwell Davenport), 1901-1987
Image from Wikimedia Commons
Nationaal Archief, Den Haag, Rijksfotoarchief: Fotocollectie Algemeen Nederlands Fotopersbureau (ANEFO), 1945-1989 - negatiefstroken zwart/wit, nummer toegang 2.24.01.05, bestanddeelnummer 925-9062 -
McKuen, Rod
Image from Wikimedia Commons
Goff, Frederick Richmond, 1916-1982
Image from Wikimedia Commons
Macleay, Alexander 1767-1848
Image from Wikimedia Commons
unknown - Public Domain
Oakeley, Frederick, 1802-1880
Image from Wikimedia Commons
author - Public Domain
Thomas, Stephen, 1809-1903