Image from Wikimedia Commons
William Taylor - Public Domain
Office of Public Affairs, National Guard Bureau - Public Domain
not stated - Public Domain
Erling Mandelmann - CC BY-SA 3.0
George Grantham Bain Collection (Library of Congress) - Public Domain
NASA - Public Domain
Joel Henry Monroe - Public Domain
David Kostner -
anonymous - Public Domain
unknown - Public Domain
user at project -
unknown -
Crivkin1 - CC BY-SA 3.0
N. C. Wingo - Public Domain
Contemporary photograph - Public Domain
Image from Wikimedia Commons
William Taylor - Public Domain
Long, John Davis, 1838-1915
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Office of Public Affairs, National Guard Bureau - Public Domain
Hammond, Creed Cheshire, 1874-1940
Image from Wikimedia Commons
not stated - Public Domain
Chadwick, John White, 1840-1904
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Leroux, Gaston, 1868-1927
Image from Wikimedia Commons
Erling Mandelmann - CC BY-SA 3.0
Aga Khan, Sadruddin, Prince, 1933-
Image from Wikimedia Commons
George Grantham Bain Collection (Library of Congress) - Public Domain
Nevin, Arthur, 1871-1943
Image from Wikimedia Commons
NASA - Public Domain
Ridenour, Louis N. (Louis Nicot), 1911-1959
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Joel Henry Monroe - Public Domain
Morgan, Christopher, 1808-1877
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David Kostner -
Trenker, Luis, 1892-1990
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Hollander, Bernard, 1864-1934
Image from Wikimedia Commons
anonymous - Public Domain
Ford, Arthur A.
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Albert, Heinrich Friedrich, 1874-1960
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Perkins, Charles C. (Charles Callahan), 1823-1886
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unknown - Public Domain
Demaray, Arthur E. (Arthur Edward), 1887-1958
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Sterling, George, 1869-1926
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Lienhard, Heinrich, 1822-1903
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Crotch, William, 1775-1847
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Bailey, Theodorus, 1805-1877
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unknown - Public Domain
Koneski, Blaže
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Norfolk, Charles Howard, Duke of, 1746-1815
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user at project -
Lewin, Menachem, 1918-....
Image from Wikimedia Commons
unknown -
Méténier, Oscar, 1859-1913
Image from Wikimedia Commons
Crivkin1 - CC BY-SA 3.0
Rivkin, William R. (William Robert), 1919-1967
Image from Wikimedia Commons
N. C. Wingo - Public Domain
Vardaman, James Kimble, 1861-1930
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Tovar, Lupita
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Greiffenhagen, Maurice, 1862-1931
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Iacovleff, Alexandre, 1887-1938
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Contemporary photograph - Public Domain
Otto, Rudolf, 1869-1937
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Kocher, Emil Theodor, 1841-1917
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Bourke, John Gregory, 1846-1896