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Staff Sgt. Lillian Harnden of the U.S. Utah Air National Guard - Public Domain
Victor Nehlig (1830-1909) - Public Domain
unknown - Public Domain
Acadia University - CC BY 2.0
author - Public Domain
McNamara - CC BY-SA 3.0
C. Schulz (studio) - Public Domain
Ph3 R.P. Fitzerald, Department of Defense - Public Domain
user at project - CC BY-SA 3.0
Thomas Cross (fl. 1632–1682) - Public Domain
Georges Biard - CC BY-SA 3.0
United States Congress - Public Domain
Copyright owned by subject as a result of a work-for-hire arrangement - CC BY-SA 3.0
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Staff Sgt. Lillian Harnden of the U.S. Utah Air National Guard - Public Domain
Hawkes, Sharlene Wells, 1964-
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Gayangos, Pascual de 1809-1897
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Witherspoon, Reese, 1976-....
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Costello, Dolores, 1905-1979
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Webb, Matthew, 1848-1883
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Victor Nehlig (1830-1909) - Public Domain
Nehlig, Victor, 1830-1909
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unknown - Public Domain
Tarlton, Richard, -1588
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Gafurov, B. G. (Bobodzhan Gafurovich), 1908-1977
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Acadia University - CC BY 2.0
Bateman, Robert, 1930-....
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author - Public Domain
McCormick, Edith Rockefeller, 1872-1932
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McNamara - CC BY-SA 3.0
Skrowaczewski, Stanisław, 1923-
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Hadley, Lindley H. (Lindley Hoag), 1861-1948
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Pradier, James, 1790-1852
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unknown - Public Domain
Evans, John, Sir, 1823-1908
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unknown - Public Domain
Lucaris, Cyril, 1572-1638
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Grew, Nehemiah, 1641-1712
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unknown - Public Domain
Brett, George P. (George Platt), 1858-1936
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Horney, Karen, 1885-1952
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C. Schulz (studio) - Public Domain
Kraepelin, Emil, 1856-1926
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Ph3 R.P. Fitzerald, Department of Defense - Public Domain
Habib, Philip Charles, 1920-1992
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user at project - CC BY-SA 3.0
Keyes, Alan L. (Alan Lee), 1950-
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unknown - Public Domain
Hughes, Sarah Tilghman, 1896-1985
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Demoustier, Charles-Albert, 1760-1807
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Thomas Cross (fl. 1632–1682) - Public Domain
Rich, Jeremiah, -1660?
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unknown - Public Domain
Johnson, James, 1774-1826
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Georges Biard - CC BY-SA 3.0
Léonard, Herbert 1946-
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United States Congress - Public Domain
Brooks, Jack, 1922-2012
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unknown - Public Domain
Yeutter, Clayton K., 1930-
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Copyright owned by subject as a result of a work-for-hire arrangement - CC BY-SA 3.0
Bobbitt, Philip.
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Beltrami, Giacomo Costantino, 1779-1855