Surname Leavenworth (Leavenworth 
) , globally, is a rare cognomen. The surname Leavenworth is habitual in the United States, where it is a rare surname, Canada, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Much less frequently, Leavenworth is the forename as well as the last name.
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| Leavenworth | Canada, United Kingdom, United States |
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henry leavenworth American soldier active in the War of 1812, US (b. 1783) |
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elias w. leavenworth American politician, US (b. 1803) |
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| mark leavenworth (b. 1752) |
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abel e. leavenworth American army officer (1828-1901), US (b. 1828) |
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| mark leavenworth (b. 1774) |
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| melines conklin leavenworth American botanist (1796-1862), US (b. 1796) |
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| jesse henry leavenworth American army officer (b. 1807) |
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francis preserved leavenworth American astronomer, US (b. 1858) |
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| jack leavenworth American college football coach, US (b. 1881) |
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| william clarence leavenworth American botanist, botanical collector and airforce navigator (1917-1944), US (b. 1917) |
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| martha duis leavenworth American botanical collector (1918-1977), US (b. 1918) |
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| george c. leavenworth patent holder |
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| jianmei w leavenworth researcher |
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| scotty leavenworth American actor, US (b. 1990) |
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