It has been awhile since I checked but It seems Aleck Chilton was on upper Current River in Shannon County in the 1860 census. It wouldn't be a huge leap to Iron County and there were several Chilton's around.
In reference to Wm. Byrd moving to Jane's Creek in Randolph County. Have you seen the scouting report, I think to Pilot Knob, concerning Freeman being camped on Jane's Creek in 1863 with 3 or 4 hundred men?