No company designations/Field & Staff
12th Infantry Regiment [also called 3rd and White's 9th Regiment] was organized during the winter of 1863-1864. It was attached to Parson's, S. P. Burns', and C. S. Mitchell's Brigade, Trans-Mississippi Department, and was active in Louisiana and Arkansas. The unit lost 4 killed and 10 wounded at Pleasant Hill and had 1 killed and 2 wounded at Jenkins' Ferry. It was included in the surrender on June 2, 1865. The field officers were Colonel Willis M. Ponder, Lieutenant Colonel Benjamin Holmes, and Major R. C. Berryman.