 In 1842, the Virginia General Assembly authorized the division of Grayson County, the northeastern portion becoming Carroll County.During the American Civil War, little fighting occurred within Grayson County.However, the "Grayson Dare Devils" (Company F, 4th Regiment of the Stonewall Brigade) were recruited from the Elk Creek Valley of Grayson County shortly after Virginia seceded, and sustained significant losses as the First Battle of Manassas.