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Soldier and explorer (1770–1838) who, with Meriwether Lewis, undertook a two-year expedition in 1804 to discover a navigable route to the Pacific Ocean, in the process exploring and later describing much of the course along the Missouri River. Following the expedition, Clark resumed his military career, serving as agent for Indian affairs in St. Louis and leading a number of campaigns during the War of 1812. Manuscript DS, signed “Wm. Clark,” one page, 7.75 x 12.75, May 22, 1807. As Brigadier General and Indian Agent, Clark certifies the peaceful intentions of a Native American Indian chief. In part: "From the special confidence reposed by me in the sincere attachment of Tar-Ton-Kah-Ha young chief of the Ottoes, & Son to the late great Chief of that Nation, as also from proofs given by him of his amicable disposition to cultivate peace, harmony, and good Neighborhood with the Citizens of the United States of America, I do by the authority vested in me, require and charge all citizens of the U. States, all Indian Nations in Treaty with the same, and all other persons to treat the said Tar-Ton-Kah-Ha…and his Band in the most Friendly Terms, so long as they conduct themselves well." The red wax seal and blue ribbon affixed at the head remain intact. In very good to fine condition, with scattered light staining, and subtle repairs to back of the split folds.
William Clark played a significant role in U.S. relations with Native American tribes, first as an explorer during the Lewis and Clark Expedition and later as a government official. As an Indian agent and later as Superintendent of Indian Affairs, he sought to implement federal policies that encouraged trade and assimilation while also negotiating treaties that often resulted in native land cessions. Though he worked to maintain peace and mediate disputes, many of the agreements he brokered ultimately favored U.S. expansion at the expense of indigenous sovereignty. In the 1830s, he was in charge of implementing President Andrew Jackson's Indian removal policy. Clark's tenure ultimately reflected the complex and often conflicting nature of U.S. Indian policy, balancing diplomacy with the federal government’s broader agenda of westward expansion.
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