Gideon Lincecum (22 April 1793 – 28 November 1874) was an American pioneer, historian, physician, philosopher, and naturalist. Lincecum is known for his exploration and settlement of what are now the U.S. states of Alabama, Mississippi and Texas, which was then beyond the western borders of the Thirteen Colonies. Lincecum had good relations with Native Americans as he explored the wilderness in the American Deep South. He was son of Hezekiah and Sally (Hickman) Lincecum, and was born in Warren County, Georgia, on April 22, 1793. Lincecum was self-educated. He spent his boyhood principally in the company of Muskogees. After successive moves, he and his wife, the former Sarah Bryan, moved in 1818 with his parents and siblings to the Tombigbee River, above the site of present Columbus, Missis