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Operation Prime Time - Public Domain
Public Domain
Van Bosch Photographers, Wiesbaden, Germany - Public Domain
Gage Skidmore - CC BY-SA 3.0
Konrad Jacobs - CC BY-SA 2.0
Bain News Service, publisher - Public Domain
John T. Hoyle - Public Domain
Mathew Brady - Public Domain
unknown - Public Domain
Joe Vitale 5 - CC BY-SA 4.0
Unrecorded (Clinedinst.) - Public Domain
tacosdelaluna - CC BY-SA 2.0
Ainsworth R. Spofford is listed as "Advisory Editor" with numerous other authors cited as contributors. No specific citation for the image illustrator - Public Domain
Mutual Broadcasting System - Public Domain
original uploader -
Painting made by Willy Eisenschitz - CC BY-SA 4.0
Robert Cornelius - Public Domain
Strohmeyer & Wyman - Public Domain
Fayer - Public Domain
Balkanregion - CC BY-SA 3.0
john rous - Public Domain
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Castro, Juan José, 1895-1968
Image from Wikimedia Commons
Operation Prime Time - Public Domain
Harewood, Dorian, 1950-
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Public Domain
Würtele, Jonathan Saxton Campbell, 1828-1904
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Walden, John Morgan, 1831-1914
Image from Wikimedia Commons
Van Bosch Photographers, Wiesbaden, Germany - Public Domain
Stevens, Mr. (Robert Smith), 1824-1893
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Gage Skidmore - CC BY-SA 3.0
Begala, Paul
Image from Wikimedia Commons
Konrad Jacobs - CC BY-SA 2.0
Hadwiger, Hugo.
Image from Wikimedia Commons
Bain News Service, publisher - Public Domain
Payne, John Barton, 1855-1935
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Müller, Wenzel, 1767-1835
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John T. Hoyle - Public Domain
Hubbard, Alice, 1861-1915
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Mitchell, Grover, 1930-2003
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Levy, Stacy, 1960-
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Mathew Brady - Public Domain
Grier, Robert Cooper, 1794-1870
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unknown - Public Domain
Gasparotto, Luigi, 1873-1954
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Joe Vitale 5 - CC BY-SA 4.0
James, Oscar, 1942-
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Altsheler, Joseph A. (Joseph Alexander), 1862-1919
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Unrecorded (Clinedinst.) - Public Domain
De Koven, Reginald, 1859-1920
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tacosdelaluna - CC BY-SA 2.0
Beghe, Jason, 1960-
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Dabney, Charles William, 1855-1945
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unknown - Public Domain
Horn, George H. (George Henry), 1840-1897
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Ainsworth R. Spofford is listed as "Advisory Editor" with numerous other authors cited as contributors. No specific citation for the image illustrator - Public Domain
Shannon, James, 1799-1859
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unknown - Public Domain
Krohn, Kaarle, 1863-1933
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Mutual Broadcasting System - Public Domain
Wismer, Harry
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original uploader -
Fife, James, 1897-1975
Image from Wikimedia Commons
Painting made by Willy Eisenschitz - CC BY-SA 4.0
Emmanuel, Pierre
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Robert Cornelius - Public Domain
Cornelius, Robert, 1809-1893
Image from Wikimedia Commons
Strohmeyer & Wyman - Public Domain
Simpson, Jerry, 1842-1905
Image from Wikimedia Commons
Fayer - Public Domain
Howe, C. D. (Clarence Decatur), 1886-1960
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Balkanregion - CC BY-SA 3.0
Dimitrov-Maĭstora, Vladimir 1882-1960
Image from Wikimedia Commons
john rous - Public Domain
Rous, John, 1411?-1491