You are Correct, that should be 14th Confederate Cav.
The T.J. Bullock who joined the 12th, joined in Corinth. I am not sure he is any kin.
The other two T. J. Bullocks, from Pike and Marion county are my uncle and his cousin. These counties are beside each other. There is only five years difference between the two men.
T. J. Bullock of the 33rd was sent to the hospital in Grenada in April Of 1863. his cards show he was detached in Dec. 1863 by order of Gen. Johnston. I cannot tell if the detachment is untill 6 May or 6 month. It finally says due to transfer. His surrender card still shows him in Co. E, 33rd Miss.