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US Government Printing Office (Washington, DC), publisher. - Public Domain
U.S. Navy photo by Chief Journalist Craig P. Strawser. - Public Domain
original uploader - Public Domain
B. Braquehais - Public Domain
[or A. Fuhn (compare [http://www.allposters.com/-sp/Antoine-Louis-Clapisson-Posters_i1864670_.htm - Public Domain
unknown - Public Domain
Government work in public domain, photographer unknown - Public Domain
original uploader - CC BY-SA 2.5
David Shankbone - CC BY 2.0
Al Aumuller, World-Telegram staff photographer - Public Domain
Ragesoss - CC BY-SA 3.0
not stated - Public Domain
Various - Public Domain
U.S. Army Signal Corps (1917) - Public Domain
William Henry Mote - Public Domain
"From a photograph by Mayall, taken immediately after he had attended the Levée for the last time" - Public Domain
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US Government Printing Office (Washington, DC), publisher. - Public Domain
Preston, Prince H. (Prince Hulon), 1908-1961
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U.S. Navy photo by Chief Journalist Craig P. Strawser. - Public Domain
Bradley, James, 1954-....
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original uploader - Public Domain
Laneau, Louis, 1637-1696
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Deluise, Michael
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B. Braquehais - Public Domain
Saint-Léon, Arthur, 1821-1870
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Alonso, Amado.
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[or A. Fuhn (compare [http://www.allposters.com/-sp/Antoine-Louis-Clapisson-Posters_i1864670_.htm - Public Domain
Nanteuil-Leboeuf, Charles-François 1792-1865
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Moorer, Thomas H., 1912-2004
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Jackson, Claiborne Fox, 1806-1862
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unknown - Public Domain
Ballivián, Adolfo, 1831-1873
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Government work in public domain, photographer unknown - Public Domain
Lubin, Isador, 1896-1978
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Rulfo, Júan
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original uploader - CC BY-SA 2.5
Pines, Alexander, 1945-....
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David Shankbone - CC BY 2.0
Leguizamo, John
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Al Aumuller, World-Telegram staff photographer - Public Domain
Hergesheimer, Joseph, 1880-1954
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Abetti, Giorgio, 1882-1982
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unknown - Public Domain
Philbin, Eugene A. (Eugene Ambrose), 1857-1920
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Summers, John W. (John William), 1870-1937
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Ragesoss - CC BY-SA 3.0
Galison, Peter, 1955-
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Clint, George, 1770-1854
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Bezborodko, A. A. (Aleksandr Andreevich), graf, 1747-1799
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not stated - Public Domain
Sedgwick, Ellery, 1872-1960
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Various - Public Domain
Desmond, William, 1878-1949
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U.S. Army Signal Corps (1917) - Public Domain
McIver, George Willcox, 1858-1947
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Kapp, Friedrich, 1824-1884
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Lloyd, Humphrey, 1800-1881
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William Henry Mote - Public Domain
Lefroy, Thomas Langlois, 1776-1869
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Kaprálová, Vítězslava, 1915-1940
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"From a photograph by Mayall, taken immediately after he had attended the Levée for the last time" - Public Domain
Parker, William, Sir, 1781-1866
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Newton, C. T. (Charles Thomas), 1816-1894