I finally ran across the records of one Pvt T.J Meyers
Captured: Honey Springs, Creek Nation, Arkansas, July 17, 1863
Prisoner-of-War Camps: 1) Fort Blunt, Indian Territory, Cherokee Nation (August 1863), 2) Gratiot Street Military Prison, St. Loius, MO (October, 1863), and 3) Camp Morton, Indianapolis, IN. (November, 1863)
Initially refused to take oath of allegiance. Finally took oath on May 22, 1865 and was released from Camp Morton to return to Texas.