Right off the bat, I can recommend 3 sources. First, look at Walter Clark's regimental sketch in Walter Clark's multi-volume history of NC regiments.
Second, look at lots of NC newspapers from the Civil War period. They published soldiers' letters.
Third look at NC newspapers published after the war. They published series of veterans' reminiscences.
If you have questions, email me.
Bryce
streetstories@juno.com