No company designation/Field & Staff
12th Cavalry Regiment, formerly the Jackson County Cavalry, was organized during the summer of 1863. This unit was assigned to General Shelby's Brigade, Trans-Mississippi Department, and confronted the Federals in Missouri and Arkansas. Later it was part of Price's operations in Missouri. The regiment sustained 2 casualties at Marks' Mills and 35 during Price's Expedition. It was included in the surrender on June 2, 1865. Its commanders were Colonel David Shanks, Lieutenant Colonel William H. Erwin, and Major Samuel Bowman and H. J. Vivien.