It mustered in for three years under the command of Colonel Thomas Ewing Jr.
2nd Brigade, 2nd Division, VII Corps, Department of Arkansas, to April 1865.
The 11th Kansas Cavalry mustered out of service at Fort Leavenworth on July 17, 1865.
Expedition from Salem to Mulberry Creek, Kansas, August 8–11, 1863 (detachment).
(Companies C and F duty on southern border of Kansas December 1863 to August 1864.)
Scout from Salem to Mulberry Creek August 8–11 (detachment).
Duty guarding telegraph lines and operating against Indians until June.
Protect stage route from Camp Collins, Colorado, to Green River until August 13.