The 1st Kansas Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War. On August 10, 1861, at the Battle of Wilson's Creek, Missouri, the regiment suffered 106 soldiers killed in action or mortally wounded, one of the highest numbers of fatalities suffered by any Union infantry regiment in a single engagement during the American Civil War.
Service
The 1st Kansas Volunteer Infantry Regiment was organized at Camp Lincoln near Leavenworth, Kansas from May 20 to June 30, 1861, the greatest number of men being recruited between May 20 and June 3. It then mustered in for three years' service under the command of Colonel George Washington Deitzler. The regiment moved to Wyandotte County, Kansas, then to Kansas City, Missouri and Clinton, Missouri, to join General Lyon, June 7-July 13, 1861. Attached to Dietzler's Brigade, Lyon's Army of the West. Attached to Department of Missouri to February 1862. Department of Kansas to June 1862. District of Columbus, Kentucky, Department of Tennessee, to September 1862. 1st Brigade, 6th Division, District of Corinth, Department of Tennessee, to November 1862. 1st Brigade, 6th Division, Left Wing, XIII Corps, Department of Tennessee, to December, 1862. 1st Brigade, 6th Division, XVI Corps, Army of the Tennessee, to January 1863. 1st Brigade, 6th Division, XVII Corps, to July 1863. District of Vicksburg, Mississippi, to September 1863. 1st Brigade, 1st Division, XVII Corps, to August 1864. Unattached, 2nd Division, XIX Corps, Department of the Gulf, to December 1864. District of Eastern Arkansas, VII Corps, Department of Arkansas, to January 1865. Department Headquarters, Department of Arkansas, to August 1865. The 1st Kansas Infantry mustered out of service on August 30, 1865.