Army of the Mississippi
Attached to Department of Missouri to March, 1862. Unattached, Army of the Mississippi, to June, 1862. Engineer Brigade, District of West Tennessee, Dept. of the Tennessee, to July, 1862. District of Columbus, Ky., to December, 1862. District of Columbus, Ky., 13th Army Corps (Old), Dept. of the Tennessee, to January, 1863. Unattached, Engineers' Dept. of the Tennessee, to February, 1864.