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Henry Peter Bosse - Public Domain
Smithsonian Institution -
Betty Ann Gray - Public Domain
Uploaded first to w:de:Bild:Dave_Warren_with_BlackBox_Prototype.jpg - Public Domain
Unknown U.S. Government employee or someone working at the behest of the government. - Public Domain
Joan Halifax - CC BY 2.0
Jac. de Nijs / Anefo - CC BY-SA 3.0
anonymous -
unknown - Public Domain
Salim Lamrani - CC BY-SA 4.0
Jean Laurent Mosnier - Public Domain
From 1893's "History of the City of Minneapolis, Minnesota" by Isaac Atwater - Public Domain
Tom Beetz - CC BY 2.0
:en:United States Army - Public Domain
J. Stirling Coyne - Public Domain
Atelier Giere (Hannover) - Public Domain
D.mod.61 - CC BY-SA 3.0
Harshberger, John W. (John William), 1869-1929 -
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Henry Peter Bosse - Public Domain
Bosse, Henry, 1844-1903
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Smithsonian Institution -
Mather, Kirtley F. (Kirtley Fletcher), 1888-1978
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Sullivan, Algernon Sydney, 1826-1887
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Malouet, Pierre-Victor, baron, 1740-1814
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Betty Ann Gray - Public Domain
Olsen, George, 1893-1971
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Uploaded first to w:de:Bild:Dave_Warren_with_BlackBox_Prototype.jpg - Public Domain
Warren, David (inventor)
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Unknown U.S. Government employee or someone working at the behest of the government. - Public Domain
Williams, George Howard, 1871-1963
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Joan Halifax - CC BY 2.0
Schachter-Shalomi, Zalman, 1924-
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Estee, Morris M. (Morris March), 1833-1903
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Vallotti, Francesco Antonio, 1697-1780
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Balfe, M. W. (Michael William), 1808-1870
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Knibb, William, 1803-1845
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Albinus, Bernhard Siegfried, 1697-1770
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Bigot, Paul-Marie-Arsène (1870-1942).
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Jac. de Nijs / Anefo - CC BY-SA 3.0
Heyting, A. (Arend), 1898-
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anonymous -
Kraus, Oskar, 1872-1942
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Falk, Peter, 1927-2011
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Walker, Stuart, 1888-1941
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unknown - Public Domain
Forman, Simon, 1552-1611
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Salim Lamrani - CC BY-SA 4.0
Miles, Robert, 1969-
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Jean Laurent Mosnier - Public Domain
Burges, James Bland, Sir, 1752-1824
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From 1893's "History of the City of Minneapolis, Minnesota" by Isaac Atwater - Public Domain
Gilfillan, John B. (John Bachop), 1835-1924
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Zinsser, Hans, 1878-1940
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Wallace, Oliver, 1887-1963
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Tom Beetz - CC BY 2.0
Levy, Howard
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:en:United States Army - Public Domain
Rahm, Karl
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J. Stirling Coyne - Public Domain
Mornington, Garrett Colley Wellesley, Earl of, 1735-1781
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Atelier Giere (Hannover) - Public Domain
Liebling, Georg
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D.mod.61 - CC BY-SA 3.0
Patolichev, N. S. (Nikolaĭ Semenovich), 1908-1989
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Harshberger, John W. (John William), 1869-1929 -
McIlvaine, Charles, 1840-1909