Isaac Chauncey Haight (May 27, 1813 – September 8, 1886), an early convert to the Latter Day Saint Movement, was a pioneer of the American West best remembered as a ringleader in the Mountain Meadows massacre.He was raised on a farm in New York, and became a Baptist at age 18, hoping to become a missionary in Burma. He educated himself, and found work as a schoolteacher. He converted to Mormonism and set out to convert others in his neighborhood, building up a branch with forty members. To escape religious persecution, his family (wife and infant daughter, parents, one brother and two sisters, all of whom had joined the church) arrived in Nauvoo, Illinois in July, 1842.