Although not an official military record, Polk's biography, written in 1890, with information he evidently provided reads in part, “While major of Hawthorn's regiment, and at the battle of Prairie Grove, he was wounded in the right cheek by a musket-ball, which came out at the left side of the neck, and soon after he was made colonel, serving in that capacity until cessation of hostilities. He was in West Virginia with Gen. Stonewall Jackson, was in the second day's fight of Shiloh, Prairie Grove, Helena and Little Rock. His regiment surrendered at Camden and Pine Bluff.”
So this probably adds credence to what you already "knew" about him serving as colonel until the end of the war.
Bryan, does that sound accurate that this regiment surrendered at Camden and Pine Bluff?
Cadwallader L. Polk's bio:
- Biographical and Historical Memoirs
of Eastern Arkansas
Author: Goodspeed Publishing Co, 1890
Publisher: Chicago, St. Louis [etc.] The Goodspeed publishing co.