Didn't see reference to Sam Watkins in responses, so I recommend you read "Co Aytch:" A Side Show Of The Big Show" by that illustrious storyteller Private Sam Watkins of the 1st Tennessee Infantry Regiment. He has a spellbinding portion on the Battle of Franklin. Also see http://www.ragz-international.com/watkins.htm.
My wifes Great Grandfather, in the 43rd Georgia Infantry survived the carnage.