Dennis --
The only question I can really answer is more of a correction. Parolees were ordered to report to camp at Demopolis after their furloughs expired. Soldiers who lived across the Mississippi were also expected at Demopolis. Men from Scott's Brigade (except the 12th Lousiana) are found in the 1st Exchanged Battn (and maybe the 2nd).
Not sure about other locations in Alabama, if any others.