Organized at Kansas City as 12th Kansas Infantry. At Fort Leavenworth, Kansas, designation changed to 9th Kansas Infantry February 4, 1862, and to 2nd Cavalry March 5, 1862. Attached to Dept. of Kansas November, 1861, to August, 1862. 2nd Brigade, Dept. of Kansas, to October, 1862. 2nd Brigade, 1st Division, Army of the Frontier, Dept. of Missouri, to February, 1863. District of Southwest Missouri, Dept. of Missouri, to December, 1863. 2nd Brigade, District of the Frontier, to January, 1864. 2nd Brigade, District of the Frontier, 7th Corps, Dept. of Arkansas, to March, 1864. 1st Brigade, District of the Frontier, 7th Corps, to April, 1864. 3rd Brigade, District of the Frontier, 7th Corps, to January, 1865. 2nd Brigade, 3rd Division, 7th Corps, to February, 1865. Unattached, 7th Corps, to August, 1865.
Service:
Moved to Quindaro, Wyandotte County, January 20, 1862; thence to Shawneetown March 12. Expedition to Little Santa Fe, Mo., against guerrillas March 22-25 (Cos. "D" and "E"). Independence, Little Santa Fe, March 22. Moved to Lawrence, thence to Topeka, Kansas, April 20-26, and to Fort Riley May 1-4 to join New Mexico Expedition. Companies "A" and "D" detached as escort to Paymaster Fisk to Fort Lyon, Colo., and return to Fort Larned May 20-June 22. Companies "B" and "C" detached as garrison at Fort Riley June 11-22. March to relief of Fort Larned June 22-28. Regiment moved from Fort Riley to Emporia June 11-14; thence to Iola June 23-26. Duty there till July 14. Moved to Fort Scott July 14-15; thence to Baxter Springs July 18-20. Expedition to Park Hill August 1-8. March to Fort Scott August 13. Expedition against Coffey August 13-25. Coon Creek, near Lamar, August 24 (Cos. "A," "B," "C" and "D"). Rejoin September 20. Scout from Fort Scott September 27-30. March to Sarcoxie and Newtonia October 1-4. Occupation of Newtonia October 4. Near Newtonia October 5. Hazel Bottom October 14 (Cos. "B" and "M"). Expedition to Sugar Creek, Cross Hollows and Mud Town October 16-20. Elkhorn Tavern October 16. Shell's Mill October 16 (Co. "B"). Sugar Creek October 17. Cross Hollows October 18. Boonsboro November 7. Cove Creek November 8. Between Fayetteville and Cane Hill November 9. (Guard supply train from Fort Scott November 17-26 Detachment). Pineville November 19. Beattie's Prairie, near Maysville, November 19 (Cos. "C" and "M"). Carthage November 27. Cane Hill, Boston Mountains, November 28. Scouting and skirmishing in Boston Mountains December 4-6. Reed Mountains December 6. Battle of
Prairie Grove December 7. Picket duty at Cane Hill till December 26. Expedition over Boston Mountains to Van Buren December 27-29. Dripping Springs December 29. Moved to Springfield, Mo., January 11-16, 1863, and duty there till July. Scout to Stanwood May 5-9 (Detachment). Expedition through Northwest Arkansas to Newton and Jasper Counties May 21-30. Bentonville May 22 (Cos. "H" and "M"). Carthage, Mo., May 26. Bentonville June 22. Cabin Creek, Cherokee Nation, July 2-3. Elk Creek, near Honey Springs, July 12. Moved to Cassville July 23, thence march to Fort Gibson, Cherokee Nation, August 11-21. Bentonville August 15. Fayetteville August 23. Operations against Cabbel, Jenny Lind and Devil's Backbone September 1. Duty at Fort Smith September 2 to November 30. Operations in Cherokee Nation September 9-25. Dardanelle September 9 and 12. Newtonia September 27 (Cos. "E" and "M"). (A detachment at Dardanelle November 6 to December 23.) Choctaw Nation November 9. Fouche le Aix Mountains November 11. Roseville November 12 (Cos. "D" and "M"). Clarksville November 24. Moved to Waldron November 30-December 1 and duty there till March 22, 1864. Scout from Waldron to Mount Ida, Caddo Gap and Dallas December 2-7, 1863 (Cos. "B" and "M"). Caddo Gap December 4 (Cos. "B" and "M"). Caddo Mill December 14 (Cos. "G" and "K"). Waldron December 29 (Detachment). Scout from Waldron to Baker Springs and Caddo Gap January 21-25, 1864. Baker's Springs January 24-25. Sulphur Springs January 25 (Cos. "G" and "M"). Little Missouri River January 25 (Cos. "A," "D" and "M"). Caddo Gap January 26. Dallas January 28. Waldron February 1. Mountain Fork February 4. Scott's Farm, Caddo Gap, February 12-14. Caddo Gap February 16. Steele's Expedition to Camden March 22-May 3. Danville March 28. Roseville March 29 (Cos. "B," "E" and "M"). Prairie D'Ann April 9-13. Roseville April 15 (Cos. "A" and "M"). Camden April 16-18. Poison Springs April 18. Jenkins Ferry,
Saline River, April 30. Moved to Fort Smith May 5-14, thence to Clarksville June 1 (Cos. "E" and "D" garrison at Roseville April 1-May 5; Roseville April 4-5, Cos. "E" and "D.") Duty at Clarksville till July 28. Moved to Fort Smith and duty there till December 27. Fort Smith July 29. Crawford County August 11. Van Buren August 12. Fort Smith September 1. Fort Gibson September 16 and 18. Cabin Creek September 19 (Cos. "C," "D," "E," "F," "G" and "I"). Moved to Fort Leavenworth, Kansas, December 25. Balance of Regiment moved to Clarksville December 27, and duty there till March 3, 1865. Dardanelle January 14-15 (Cos. "A," "B" and "M"). Moved to Lewisburg March 3-7 and duty there till May 13. Moved to Fort Gibson, Cherokee Nation, May 13-20 and duty there till July 2. Moved to Lawrence, Kansas, July 2-14. Mustered out August 17, 1865.
Regiment lost during service 2 Officers and 62 Enlisted men killed and mortally wounded and 1 Officer and 116 Enlisted men by disease. Total 181.
