Ron - My tally of the compiled service records show the 1st Tennessee coming into Gettysburg with 389 Officers and men.
Losses on Day One were 5- K 31-W 53-C losses on Day 3 were 12 -K 68-W 44- C total 213 (55%) heavy losses indeed
Childs seems to have left service prior to Gettysburg. My book, Also For Glory, covers their role on both 1st and 3rd of July. They and the 13th Alabama linked up with Garnett (56 VA & 28VA) at the angle.... They crossed the wall before Armistead got there.
Don Ernsberger firstname.lastname@example.org