After the 15th Brigade of the Texas State Troops were disbanded, Sgt. Thomas W. Lisenbee enlisted in Col. B. Warren Stone's 6th Texas Cavalry as a private at McKinney Texas. The regiment was approved in September 1861 and was to obtain recruits and former Texas State Troops from Dallas, McKinney, Waco, Austin, and Lancaster and Bell County. The regiment was mustered at Dallas, Texas in the spring of 1862 with 802 effectives and was moved to Indian Territory and Arkansas where the regiment saw action at Elkhorn Tavern. The regiment was moved east of the Mississippi River and was dismounted and saw action at Corinth and Hatchie Bridge.

The 6th Texas Dismounted Cavalry was assigned to Ross' Brigade and served in the Army of Tennessee during the Atlanta Campaign. The 6th Texas Dismounted Cavalry Regiment was later attached to the Department of Alabama, Mississippi and East Louisiana and ended the war in Mississippi.