Due to further losses at Chickamauga, the regiment was assigned as army headquarters guard during the Chattanooga campaign, reduced to less than a hundred men. Continuing headquarters guard duty into the early spring of 1864 at Dalton, Georgia, the regiment joined Randall L. Gibson's Louisiana brigade in April. Kent died on 2 April and was replaced by Batchelor; Company I Captain Douglas West became major. It participated in the marches of the Atlanta campaign but saw little action until the 28 July Battle of Ezra Church. Among those killed at Ezra Church was Company G Captain William H. Sparks. After the fall of Atlanta, the regiment participated in the Franklin–Nashville Campaign, including the Battle of Nashville between 15 and 16 December.