Lloyd, my error. I had listed TEXT references to Creasman in Clark in my "images" file. The cites are actually to where Clark mentions Creasman in text (which is digitalized at Eastern Carolina U's website).
I have Isaac H. Bailey as captain of the 58th, wounded at Chickamauga and on sick leave the remainder of the war. That's not to say he may have been a colonel in the NC militia or something, just that he wasn't a Confederate army colonel.