I find Pvt. Joseph F.Thompson in Col. B. Warren Stone's 6th Texas Cavalry which was raised in Dallas with recruits from McKinney and other towns in the north Texas area.
Col. William B.Simm's 9th Texas Cavalry was raised at Camp Reeves, 30 miles west of Pilot Grove and mustered into service at Sherman. The 9th and 6th Texas Cavalry Regiments had the same war record, fought in the same battles and were placed in Ross' Brigade. Collin Joseph McKinney was in Col.B.Warren Stone's 6th Texas Cavalry, C.S.A. Collin J. McKinney was the son of Collin McKinney, who was the namesake of Collin County and Mckinney Texas. Collin J. McKinney was Betty Blanton Crabtree's grandfather. Betty is the grandaughter of my great grandmother's brother, Thomas Jefferson Blanton. Tom Blanton enlisted in Col.Thomas Green's 5th Texas Cavalry at Bonham and was mustered into service at Shreveport,Louisiana just before the Red River Campaign.
My great grandmother Mary Louisa (Blanton) Coffee's brothers, M.H. and J.L. Blanton enlisted in Col.William B. Simm's 9th Texas Cavalry at Camp Reeves and were killed in action in the battle of Corinth Mississippi. The brothers Tom J., M.H. and J.L. Blanton enlisted directly into the Confederate army and were never in the Texas State Troops.
Collin Joseph McKinney enlisted in Bowen's Company, Col. B. Warren Stone's 6th Mounted Regiment, Collin and Dallas County, Texas State Troops. Col. Stone's entire militia regiment along with recruits from other Collin County militia companies enlisted in Col. B.Warren Stone's 6th Texas Cavalry, C.S.A. and moved to Arkansas with Col.William B. Simms' 9th Texas Cavalry, C.S.A.