again from www.civilwardata (from CCMSR)

I find a S.H.Alexander enlisting as a sergeant in the TN 5th Cavalry CSA

I searched for all Dibrell in CSA TN; A George G.Dibrell was a colonel in the TN 13 Cavalry (Gore's) CSA. Also in the same unit was Jo Dibrell, a 2nd LT of Company I, and W.L.Dibrell a private of Co.D. No Dibrell in TN 8th anything.

As for Lacy, I find Andrew J. a private in Company E of the TN 51st Infantry, CSA and an A.J.Lacy in the TN 51st Consolidated Infantry, Co.I (not sure when the 51st Cons was formed. The 51st still had a battle report from Chattanooga on October of 1863).