Organized at Peoria, Ill., and mustered into State service May 23, 1861. Moved to Alton, Ill., July 6, thence to St. Charles and Mexico, Mo., and duty in Northern Missouri till August. Ordered to Jefferson Barracks, Mo., and mustered in August 17, 1861. Moved to Jefferson City, Mo., thence to Booneville, Mo., October 1. Attached to Fremont's Army of the West and to Dept. of Missouri to February, 1862. 2nd Brigade, 3rd Division, Army of Southwest Missouri, to May, 1862. Artillery, 3rd Division, Army of Southwest Missouri, to July, 1862. District of Eastern Arkansas, Dept. of Missouri. to December, 1862, and Dept. of the Tennessee to January, 1863. Artillery, 12th Division, 13th Army Corps, Army of the Tennessee, to May, 1863. Artillery, 14th Division, 13th Army Corps, Army Tennessee, to July, 1863. 3rd Brigade, 1st Division, 13th Army Corps, Dept. of the Tennessee, to August, 1863, and Dept. of the Gulf to September, 1863. Artillery, 1st Division, 13th Army Corps, Dept. of the Gulf, to June, 1864. Defences of New Orleans, La., Dept. of the Gulf, to April, 1865. District of LaFourche, Dept. of the Gulf, to July, 1865.