THORNTON, a tything in-the parish of MARNHULL, hundred of REDLANE, Sherborne division of the county of DORSET, 3 miles (N.N.E.) from Sturminster- Newton-Castle. It is now almost depopulated, though formerly a distinct parish, and was united to Marnhull at the Reformation, when the church, dedicated in 1464 to St. Martin, was desecrated, and is still used as a stable.