Battle of Pleasant Hill, April 9, 1864. Battle of Jenkins' Ferry, Arkansas April 30, 1864. Following Colonel Grinsted's death at Jenkins Ferry, Lieutenant Colonel Thomas David Thomson (originally first lieutenant of Co. B) was promoted to colonel, commanding 33rd Arkansas, to rank from April 30, 1864. Close of the war On 1 September 1864, Brigadier General James C. Tappan reported that Colonel Thompson's regiment was assigned to Tappan's Brigade. On the same day Brigadier General Tappan reported that the assigned strength of Hardy's Regiment 19th Arkansas Infantry Regiment (Hardy's) and Thompson's Regiment was 787 men, of which only 373 were armed. On 30 September 1864, General Kirby Smith's report on the organization of the Army of the Trans-Mississippi lists the 33rd Arkansas, under the command of Lieutenant Colonel Thompson, as belonging to Brigadier General James C. Tappan's, 3rd Brigade of Acting Major General Thomas J. Churchill's 1st Arkansas Infantry Division of Major General John B. Magruder's 2nd Army Corps. On 17 November 1864, a union spy reported that the Tampan's Brigade and Churchill's Division was in the vicinity of Camden, in Ouachita County, Arkansas. On 31 December 1864, General Kirby Smith's report on the organization of his forces lists the 33rd Arkansas, under the command of Colonel Thompson as belonging to Brigadier General James C. Tappan's, 3rd Brigade of Acting Major General Thomas J. Churchill's 1st Arkansas Infantry Division of Major General John B. Magruder's 2nd Army Corps, Confederate Army of the Trans-Mississippi. On 22 January 1865, Major General Churchill was ordered to move his division to Minden, Louisiana, and occupy winter quarters. Union commanders in the Department of the Gulf reported on March 20, 1865, that General Tappan's brigade minus Shaver's regiment, was located a Minden, Louisiana, with the rest of Churchill's Division. In early April 1865, the division concentrated near Shreaveport Louisiana, and then moved to Marshall Texas by mid April 1865. Surrender By late April, news of the surrender of General Lee's army had made it to the Army of the Trans-Mississippi. Captain Junius Newport Bragg, the 27 year old assistant surgeon of the 33rd Arkansas Regiment, in camp near Marshall, Texas, wrote to his wife in Camden, on Sunday, April 23, two weeks after Appomattox: But as the news of the failure in the east set in, desertions became rampant in the Army. Captain Bragg wrote again on May 20, still at Marshall, reporting: The regiment