1st Cavalry Regiment was organized during the late summer of 1861 and its companies were mustered into Confederate service in October. It served in the Central Army of Kentucky and the Department of East Tennessee and fought in various engagements in Kentucky and Tennessee. Because of its difficult service in Kentucky during September and October, 1862, it was reduced to a battalion and assigned to the 3rd Kentucky Cavalry. The field officers were Colonel Benjamin H. Helm; Lieutenant Colonels J.W. Griffith, H.C. Leavell, and Thomas G. Woodward; and Majors John W. Caldwell and N.R. Chambliss.