Organized at Fort Leavenworth by consolidation of Independent Battalions, Squadrons and Detachments originally formed for other Regiments March 27, 1862. Company "A" organized as Company "D," 8th Kansas, September 13 to October 14, 1861; Company "B" as Company "H," 8th Kansas, September 21 to November 20, 1861; Company "C" as Company "C," 3rd Kansas, July 24, 1861; Company "D" as Company "D," 1st Battalion Cavalry, October 19, 1861, to January 16, 1862; Company "E" as Company "E" 1st Battalion Cavalry, October 19, 1861, to January 16, 1862. Company "F" organized as Home Guard October 19, 1861, to January 16, 1862, and on scout and patrol duty at Paola. Company "G" for 1st Battalion Cavalry September 9, 1861, to January 16, 1862. Company "H" for 1st Battalion Cavalry October 22, 1861. Company "I" mustered in March 6, 1862. Company "K" mustered in July 11, 1862. Company "L" mustered in May 2, 1863, and Company "M" mustered in June 11 to August 2, 1863.
Service:
Company "C" had participated in skirmish at Medoc, Mo., August 23, 1861; Ball's and Morse's Mills August 28-29; Drywood Creek, Fort Scott, September 2; Morristown, Mo., September 17, and Osceola, Mo., September 22. Companies "G" and "H" on Expedition from Morristown to Dayton and Rose Hill, Mo., January 1-3, 1862. Operations in Johnson and LaFayette Counties, Mo., January 5-12. Columbus, Mo., January 9. Regiment attached to Dept. of Kansas to August, 1862. 1st Brigade, Dept. of Kansas, to October, 1862. 1st Brigade, 1st Division, Army of the Frontier, Dept. of Missouri, to June, 1863. District of the Frontier, Dept. of Missouri, to July, 1864. District of the Border, Dept. of Missouri, to January, 1864. Dept of Kansas to May, 1864. 3rd Brigade, District of the Frontier, 7th Corps, Dept. of Arkansas, to September, 1864. 4th Brigade, Cavalry Division, 7th Corps, to January, 1865. Unattached, 7th Corps, Little Rock, Ark., to July, 1865. Companies "A," "B," "C," "G" and "I" detached June 10, 1862. Company "A" on escort duty to Fort Union, New Mexico. Company "B" in Mountains near Denver and built Fort Halleck. Company "C" to Fort Riley, Kansas; Company "G" to Fort Lyon, Colorado, and Company "I" to Fort Laramie. Locust Grove, Cherokee Nation, July 3, 1862 (Cos. "D," "E," "F" and "H"). Operations against Coffey August. March to Sarcoxie. Blunt's Campaign in Missouri and Arkansas August to December. Reconnoissance to Newtonia September 28-29. Newtonia September 30. Occupation of Newtonia October 4. Canehill, Boston Mountains, November 28. Battle of Prairie Grove, Ark., December
7. Expedition over Boston Mountains to Van Buren December 27-31. Cane Hill January 2, 1863 (Co. "H"). Spring River, Mo., February 19 (Co. "D"). Fort Halleck, Dakota Territory, February 20 (Co. "B"). Regiment moved to Fort Scott escorting trains February, 1863. Stationed along borders of Kansas operating against guerrillas March, 1863, to March, 1864 (Cos. "A," "D," "E, "F" and "K"). Expedition from Humboldt to Cottonwood April 10, 1863 (Co. "G"). Scout in Bates and Cass Counties May 3-11. Hog Island May 18 (Cos. "C, "E" and "K"). Westport June 17 (Cos. "E" and "K"). Blue River June 18 (Co. "K"). Cabin Creek July 1-2.
Grand Pass, Indian Territory, July 7 (Co. "B"). Honey Springs, Kansas, July 17 (Co. "C"). Taylor's Farm, Little Blue, August 1. Brooklyn, Kansas, August 21 (Co. "K"). At Trading Post (Cos. "E" and "G"), Harrisonville, Aubrey County (Co. "K"), Pleasant Hill (Co. "D") and Westport (Co. "H") operating against guerillas. Company "C" rejoin from Fort Riley August, 1863. Pursuit of Quantrell August 20-28. Brooklyn August 28. Scout from Coldwater Grove to Pleasant Hill and Big Creek and skirmishes September 4-7 (Cos. "D," "E" and "G"). Jackson County September 15. Baxter Springs October 10. Pursuit of Shelby toward Warrensburg. Harrisonville October 24 (Co. "G"). Carthage October 18. Regiment assembled and ordered to Fort Smith via Springfield, Mo., April 3, 1864. Duty at Fort Smith till July. (Co. "F" stationed at Van Buren May 23.) Hahn's Farm, near Waldroa, June 19. Near Fayetteville June 24 (Co. "C"). Operations in Arkansas July 1-31. Frog Bayou July 1. Moved to Little Rock July 2-14. Duty there and at Duvall's Bluff till July, 1865. Bull's Bayou August 26, 1864. Bull Creek August 27 (Co. "I"). Expedition in pursuit of Shelby August 27-September 6. Whittier's Mills October 8. Reconnoissance from Little Rock to Princeton October 19-23. Hurricane Creek October 23. Expedition from Brownsville to Cotton Plant October 26-November 3. Scout from Duvall's Bluff to West Point November 16-18. Expedition from Duvall's Bluff up White River December 13-15. Duty in Arkansas till July, 1865. Mustered out July 17, 1865.
Regiment lost during service 1 Officer and 52 Enlisted men killed and mortally wounded and 2 Officers and 140 Enlisted men by disease. Total 195.