If you're doing Salisbury, I'd recommend going to both the Old Lutheran Cemetery (where the guards are buried and the Fame Statue is), the National Cemetery (where the prisoners are buried, mostly in trench graves) and the Rowan County Public Library's Special collections room, where they have quite a bit of prison memorabilia, including original diaries. If you were staying there longer, I'd put you in touch with Ed and Sue Curtis of the Salisbury Confederate Prison Association, a sweet older couple who are the undisputed experts on all things related to Salisbury Prison.