The C.S. Reserve Corps of the Army of the Mississippi, commanded by Brig. Gen. John C. Breckinridge and organized in three brigades under Col. Robert P. Trabue, Brig. Gen. John S. Bowen with Col. John D. Martin, and Col. Winfield S. Statham, marched from Burnsville, Miss., on April 4, 1862, by way of Monterey and Mickey’s and bivouacked on the night of April 5 along the Bark Road in the rear of Gen. Johnston’s headquarters. On the morning of April 6, the corps advanced, with the 1st Brigade moving on the Pittsburg Road and the other brigades taking the Bark Road to reinforce the right. About 12 P.M., the 2d and 3d Brigades, under the corps commander, became engaged south of the Peach Orchard and followed the movement of the army’s right during the afternoon. On April 7, 1862, Breckinridge commanded the right center. The Reserve Corps had 7,211 officers and men present for duty and suffered losses of 386 killed, 1,682 wounded, and 165 missing, for a total of 2,233.