The 23rd Missouri Infantry Regiment was organized from recruits across the state of Missouri in September 1861 and mustered in for three years service under the command of Colonel Jacob T. Tindall.
The regiment was attached to the Department of the Missouri to March 1862.
District of Rolla, Department of the Missouri, to December 1863.
Unattached, District of Nashville, Tennessee, Department of the Cumberland, to January 1864.
2nd Brigade, Rousseau's Division, XII Corps, Department of the Cumberland, to April 1864.
Unassigned, 4th Division, XX Corps, Department of the Cumberland, to July 1864.
Moved to Macon City, Mo., October 15, 1861, then to Chillicothe, Mo., November 1.
Duty at Chillicothe, Mo., November 1861 to March 1862, and St. Louis, Mo., until April.
At Hudson, Mo., until December 1862, and in Central District of Missouri.
Moved to Louisville, Ky., June, and duty there until July.