That struck me too. In the attack at Franklin, Strahl's brigade (including the 31 TN) slammed into near the epicenter of the Federal line - crowding into a ditch just west of the Columbia Pike. It was described as one of the worst parts of the battlefield, for attackers receiving enemy fire. These units were subject to a sweeping murderous enfilade fire pouring in from the protruding Union line (near the Cotton Gin) on their right. Their ranks were consequently decimated.
Col. Stafford was found dead, near where Gen. Strahl was killed. The Colonel lay in a pile of bodies with 'his feet wedged in at the bottom, with other dead across and under him.' ('For Cause & For Country', Jacobson, p. 406).
It's difficult to believe that in this slaughter scene, there were not more staff and line officers belonging to the 31 TN identifed in the McGavock Confederate Cemetery records. The only five members of the 31 TN listed are:-
L-C Fountain Stafford
Capt. W. V. Sims
Pvte. William A. Thomas
Pvte. H. C. Stiffler
Pvte. J. C. Jones