General Forrest's attack at Murfreesboro, Tenn, July 13, 1862: "The forces attacking my camp were the First Regiment Texas Rangers [8th Texas Cavalry, Terry's Texas Rangers, ed.], Colonel Wharton, and a battalion of the First Georgia Rangers, Colonel Morrison, and a large number of citizens of Rutherford County, many of whom had recently taken the oath of allegiance to the United States Government. There were also many negroes attached to the Texas and Georgia troops, who were armed and equipped, and took part in the several engagements with my forces during the day."
Federal Official Records, Series I, Vol XVI Part I, pg. 805, Lt. Col. Parkhurst's Report (Ninth Michigan Infantry)