 On September 30, 1864, the 39th (Cocke's) Regiment Arkansas Infantry Regiment was assigned to 4th (Hawthorn's) Brigade, 1st (Churchill's) Division, Second (Magruder's) Corps, Army of the Trans-Mississippi, and remained in that assignment through December 31, 1864.On November 17, 1864, a union spy reported that Hawthorn's Brigade and Churchill's Division was in the vicinity of Camden, in Ouachita County, Arkansas.On December 31, 1864, General E. Kirby Smith's report on the organization of his forces lists the 34th Arkansas, under the command of Colonel Brooks as belonging to 4th (Hawthorn's) Brigade, 1st (Churchill's) Division, Second (Magruder's) Corps, Army of the Trans-Mississippi.