Some of the 63rd Virginia were stretcher bearers during the battle and they did suffer casualties helping their comrades. I have read numerous accounts by 63rd soldiers about the retreat and it is heart rending. During that winter most of the troops had only a tattered blanket for warmth and many not even that. When I start waxing eloquent about how my ancestors in Jackson's "foot cavalry" marched so far Jeff Weaver always sobers me by pointing out that the 63rd marched just as hard and a whole lot farther, and reminds me that I also had ancestors in the 63rd! LOL. Have you read Larry Cockerham's "Two Armies on the Same Road" ? It details the trials of the 63rd from the Atlanta Campaign through to the surrender.