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John Kay - Public Domain
Thierry Caro - CC BY-SA 3.0
US Army - Public Domain
U.S. Army - Public Domain
Frederick Grosse (1828-1894) - Public Domain
Quentin Olbrechts - CC BY-SA 3.0
user at project - Public Domain
Joseph Kriehuber Foto: :de:Peter Geymayer - Public Domain
Wilfred E. Richard - CC BY 4.0
Public Domain
James William Norton-Kyshe - Public Domain
Krupasindhu Muduli - CC BY-SA 3.0
Greg Patent - CC BY 3.0
Library of the London School of Economics and Political Science -
not stated - Public Domain
Natascha Artin (original photo); Jochen Burghardt - CC BY-SA 2.0
Abram M. Brazer - Public Domain
unknown - Public Domain
Thomas Kitchin - Public Domain
David J. Oakes - Public Domain
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John Kay - Public Domain
Kay, John, 1742-1826
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Brizola, Leonel de Moura, 1922-2004
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Thierry Caro - CC BY-SA 3.0
Becker, Howard Saul, 1928-....
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US Army - Public Domain
Liteky, Charles
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U.S. Army - Public Domain
Hill, James T.
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Frederick Grosse (1828-1894) - Public Domain
Barkly, Henry, Sir, 1815-1898
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Quentin Olbrechts - CC BY-SA 3.0
Samyn, Philippe, 1948-
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Edge, Walter E. (Walter Evans), 1873-1956
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user at project - Public Domain
Magnus, R. (Rudolf), 1873-1927
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Joseph Kriehuber Foto: :de:Peter Geymayer - Public Domain
Mayseder, Joseph, 1789-1863
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Wilfred E. Richard - CC BY 4.0
Fitzhugh, William W., 1943-....
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Public Domain
Minge, David, 1942-
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Wank, Roland A. (Roland Anthony), 1898-1970
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Bishop, Joseph Bucklin, 1847-1928
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James William Norton-Kyshe - Public Domain
Anstey, Thomas Chisholme, 1816-1873
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Krupasindhu Muduli - CC BY-SA 3.0
Bhatt, Vishwa Mohan
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Wood, J.G. (John George), 1827-1889
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Greg Patent - CC BY 3.0
Patent, Greg, 1939-
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Library of the London School of Economics and Political Science -
Parker, Peter, Sir, 1924-2002
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Simon, William E.
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Johnson, Charles Spurgeon, 1893-1956
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Public Domain
Lynch, John, 1825-1892
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not stated - Public Domain
Copeland, Charles Townsend, 1860-1952
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Natascha Artin (original photo); Jochen Burghardt - CC BY-SA 2.0
Weyl, F. Joachim (Fritz Joachim), 1915-
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Abram M. Brazer - Public Domain
Leḳerṭ, Hirsh, 1879-1902
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unknown - Public Domain
Baddeley, John F. (John Frederick), 1854-1940
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Thomas Kitchin - Public Domain
Madan, Martin, 1726-1790
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Gray, John Hamilton, 1814-1889
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David J. Oakes - Public Domain
Fischbach, Michelle, 1965-
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Pólya, George, 1887-1985