126th Regiment, Illinois InfantryOverview: Organized at Alton, Ill., and mustered in September 4, 1862. Moved to Columbus, Ky., thence to Bolivar and LaGrange, Tenn., November 20-28, 1862. Attached to District of Jackson, 13th Army Corps (Old), Department of the Tennessee, to December, 1862. 3rd Brigade, District of Jackson, 16th Army Corps, to March, 1863. 2nd Brigade, 3rd Division, 16th Army Corps, to May, 1863. 2nd Brigade, Kimball's Provisional Division, 16th Army Corps, to July, 1863. 2nd Brigade, Kimball's Division, District of Eastern Arkansas, to August, 1863. 2nd Brigade, 2nd Division, Arkansas Expedition, to January, 1864. 2nd Brigade, 2nd Division, 7th Army Corps, Dept. of the Arkansas, to March, 1864. 3rd Brigade, 3rd Division, 7th Army Corps, to February, 1865. Unattached, 7th Army Corps, mouth of White River, Ark., to July, 1865. Service: Duty at LaGrange, Tenn., till January, 1863. (6 Companies moved to Jackson, Tenn., December 19, 1862; thence moved to Humboldt, Tenn. R.R. crossing at Fork Deer River December 20. Action at Humboldt December 21.) 4 Companies on duty at Jackson, Tenn., and 6 Companies at Humboldt, Tenn., January to March 25; then at Jackson till May 25, 1863. Moved to Vicksburg, Miss., May 25-28. Siege of Vicksburg May 28-July 4. Moved to Helena, Ark., July 24. Expedition against Little Rock, Ark., August 1-September 10. Bayou Fourche and capture of Little Rock September 10. Moved to Duvall's Bluff October 24, and duty there till August 19, 1864. Action at Clinton June 25-26. Moved to Pine Bluff, Ark., August 19, and duty there till February 12, 1865. Scouts from Pine Bluff toward Camden and Monticello January 26-31. At mouth of White River, Ark., till June 12, and at Pine Bluff till July 12. Mustered out July 12, 1865. Regiment lost during service 6 Enlisted men killed and mortally wounded and 4 Officers and 192 Enlisted men by disease. Total 202.