October 24, 1862
On October 24, 1862, General-in-Chief Henry Halleck relieved Major-General Don Carlos Buell of his command of the Army of the Ohio.
Headquarters of the Army, Washington, D. C,
October 24, 1862.
Major-General D. C. Buell, Commanding, etc.
—The President directs, that on the presentation of this order, you will turn over your command to Major-General W. S. Rosecrans, and repair to Indianapolis, Indiana, reporting from that place to the adjutant-general of the army, for further orders.
Very respectfully, your obedient servant,
H. W. HALLECK,