Would anyone have access to an index, etc., that would give me more information about the military service performed by the following individuals that received Military Warrants for land in Amite County, Mississippi? I received this information from the BLM (Bureau of land Management)

Stephen L. TARVER, Military Warrant No. 27965, 1/16/1850, 160 acres

John RICHMOND, Military Warrant No. 29213, 11/1/1854, 82.13 acres