Organized at Cairo, Ill., August 1, 1861. Attached to District of Cairo, Ill., to October, 1861. 3rd Brigade, District of Cairo, to February, 1862. 1st Brigade, 2nd Division, District of Cairo, February, 1862. 2nd Brigade, 2nd Division, District of West Tennessee, and Army of the Tennessee, to July, 1862. 2nd Brigade, 2nd Division, District of Corinth, to September, 1862. 1st Brigade, 2nd Division, District of Corlnth, to November, 1862. 2nd Brigade, District of Corinth, 13th Army Corps (Old), Dept. of the Tennessee, to December, 1862. 2nd Brigade, District of Corinth, 17th Army Corps, to January, 1863. 2nd Brigade, District of Corinth, 16th Army Corps, to March, 1863. 2nd Brigade, 2nd Division, 16th Army Corps, Army of the Tennessee, to September, 1864. 2nd Brigade, 4th Division, 15th Army Corps, to April, 1865. 1st Brigade, 1st Division, 15th Army Corps, to July, 1865.
