Atkinson, Henry,1782–1842, American army officer, b. North Carolina. After service as a colonel in the War of 1812War of 1812,
armed conflict between the United States and Great Britain, 1812–15. It followed a period of great stress between the two nations as a result of the treatment of neutral countries by both France and England during the French Revolutionary and Napoleonic Wars,
..... Click the link for more information. , he was a commander in the West and led two expeditions (1819, 1825) to the Yellowstone River. He was general commander of forces in the Black Hawk WarBlack Hawk War,
conflict between the Sac and Fox and the United States in 1832. After the War of 1812, whites settling the Illinois country exerted pressure on the Native Americans.
..... Click the link for more information. and later superintended removal of the WinnebagoWinnebago,
Native North Americans whose language belongs to the Siouan branch of the Hokan-Siouan linguistic stock (see Native American languages). When Father Jean Nicolet encountered them (1634), the Winnebago lived in E Wisconsin, from Green Bay to Lake Winnebago.
..... Click the link for more information. to Iowa. Jefferson Barracks (near St. Louis) and Fort LeavenworthFort Leavenworth
, U.S. military post, 6,000 acres (2,430 hectares), on the Missouri River, NE Kans., NW of Leavenworth; est. 1827 by Col. Henry Leavenworth to protect travelers on the Santa Fe Trail. The oldest U.S. military prison (est. 1874), and the U.S.
..... Click the link for more information. were begun under his direction.