References:
Dyer's Compendium of the War of the Rebellion, 1908 Edition

1st REGIMENT CAVALRY.

Regiment organized from 1st Colorado Infantry November 1, 1862. Attached to District of Colorado, District of the Upper Arkansas and District of the Plains till November, 1865, operating against Indians and protecting stage routes. Stationed by detachments at Denver, Camps Collins, Curtis, Fillmore, Robbins, Weld and Canon City and at Forts Lyon and Garland.

SERVICE.--Skirmish at Grand Pass, Fort Halleck, Idaho, July 7, 1863 (Detachment). Expedition from Denver to Republican River, Kansas, April 8-23, 1864 (Co. "D"). Skirmish near Fremont Orchard, Colo., April 12 (Cos. "C" and "H"). Expedition from Camp Sanborn to Beaver Creek, Kansas, April 14-18 (Cos. "C" and "H"). Skirmish at Big Bushes, Smoky Hills, April 16 (Cos. "C" and "H"). Skirmish at Cedar Bluff, Colo., May 3 (Co. "C"), Scout from American Ranch to Cedar Bluff May 9-10. Scout from Fort Sumner August 3-November 4 (Cos. "A," "B" and "G"). Scout from Fort Union, N. Mex., August 4-September 5. Affair near Fort Lyon, Colo., August 7. Skirmish near Sand Creek August 11 (Cos. "D," "G," "K" and "L"). Scout on Fort Union Road, near Fort Garland, August 12-16 (Detachment). Skirmish, Atkins' Ranch, August 22. Skirmish, Walnut Creek, Kansas, September 25 (Cos. "L" and "M"). Skirmish, Fort Lyon, October 9. Affairs near Fort Lyon November 6-16. Pawnee Forks November 25 (1 Co.). Engagement with Indians at Sand Creek, Colo., November 29 (Cos. "C," "D," "E," "G," "H" and "K"). Company "B" at Fort Zarah, Kansas, August to October, 1864, then at Fort Garland. Skirmishes at Valley Station and Julesburg, Colo., January 7, 1865. Operations on Overland Stage Route between Denver and Julesburg January 14-25, 1865 (Co. "C"). Skirmish, Valley Station, Colo., January 14 (Co. "C"). Skirmish, Godfrey's Ranch, January 14 (Detachment). Skirmishes at Morrison's or American Ranch and Wisconsin Ranch January 15. Point of Rocks or Nine-Mile Ridge, near Fort Larned, January 20. Gittrell's Ranch January 25. Moore's Ranch January 26. Lillian Springs Ranch January 27. Near Valley Station January 28 (Co. "C"). Operations against Indians near Fort Collins, Colo., June 4-10 (Co. "D"). Expedition from Denver to Fort Halleck, Dakota, June 17-19 (Co. "D"). Operations about Rock Creek Station, Seven-Mile Creek, Dakota, June 24-30 (Cos. "A" and "D"). Mustered out at Leavenworth, Kansas, November 18, 1865.

2nd REGIMENT CAVALRY.

Organized at St. Louis, Mo., by consolidation of the 2nd and 3rd Regiments Infantry to date from October, 1863. Attached to District of Southeast Missouri, Dept. of Missouri, to December, 1863. District of St. Louis, Mo., Dept. Missouri, to January, 1864. District Central Missouri, Dept. of the Missouri, to December, 1864. District of the Upper Arkansas to September, 1865.

SERVICE.--Organizing Regiment at Benton Barracks, Mo., till January, 1864. Companies "F," "G," "H" and "K" on duty in Colorado at Fort Lyon and other points till November 26, 1863. March to Fort Riley, Kansas, November 26-December 25, thence to Kansas City, Mo., January 6, 1864. Regiment moved from St. Louis, Mo., to Dresden January 16, 1864, thence to Kansas City February 15-20. Assigned to duty in 4th Sub-District of Central Missouri, consisting of Cass, Johnston, Bates and Vernon Counties, Mo., and engaged in protecting borders of Kansas and operations against guerrillas, with almost constant fighting by detachments, till October, 1864. Operating from Kansas City, Independence, Westport, Hickman's Mills, Pleasant Hill and Harrisonville. Skirmish at Dayton, Mo., April 27. Skirmishes in Johnson County April 28-30. Skirmish at Sni Hills April 29 and May 21. Affair at Blue River May 21 (Detachment). Pleasant Hill May 28. Scout on the Osage June 8-19 (Cos. "I" and "L"). Scout from Pleasant Hill June 14-16 (Cos. "D," "I," "K" and "M"). Expedition from Kansas City into Missouri June 18-20 (Cos. "I," "K" and "M"). Operations in Western Missouri July 6-30. Near the Little Blue, Jackson County, July 6 (Co. "C"). Camden Point July 13. Near Fredericksburg July 14. Fayette Road, near Helmsville, July 16. Fredericksburg July 17. Scout on South Platte River, Colo., July 17-28 (Detachment). Ragtown July 20. Camden Point July 22. Union Mills July 22. Pleasant Hill July 25. Near Independence August 1 (Detachment). Scout on Independence Road to Gunter's Mills August 1-3 (Cos. "F," "G," "I," "K" and "L"). Scout from Independence to Lafayette County August 2-8 (Detachment). Scout from Independence to Lafayette and Jackson Counties August 13-18 (Cos. "C," "D," "F," "I," "K" and "M"). Operations in Lafayette, Howard and Saline Counties Aug. 13-22. Engagement, Canadian River, I. T., August 21 (Detachment). Scouts in Jackson and Cass Counties August 25-29 (Co. "D"). Skirmish near Pleasant Hill August 26 (Co. "D"). Operations against Price's Invasion August 29-December 2. Scouts on Little Blue, Jackson County, September 2-10 (Co. "A"). Walnut Creek September 25. Skirmish near Pleasant Hill September 26. Regiment concentrated at Pleasant Hill October 1, and cover Independence and front of the Army of the Border. Near Lexington October 17 (Cos. "C," "E," "G," "K" and "L"). Lexington October 19. Battle of Little Blue October 21. Pursuit of Price October 21-28. Independence and State Line October 22. Big Blue and Westport October 23. Marias des Cygnes, Mine Creek, Little Osage River, October 25. Newtonia October 28. Moved to District of the Upper Arkansas December 22, and engaged in operations against Indians about Fort Riley, Fort Zarah, Fort Ellsworth and Fort Larned till September, 1865. Skirmish at Godfrey's Ranch, Colo., January 14, 1865 (Detachment). Operations on Overland Stage Route from Denver to Julesburg, Colo., January 14-25 (Detachment). Skirmish at Fort Zarah February 1 (Co. "C"). Scout from Fort Larned to Crooked Creek March 9 (Detachment). Near Fort Zarah April 23 (Detachment). Pawnee Rock May 20 (Detachment). Cow Creek Station, Plum Butte and Pawnee Rock June 12 (Detachments). Mustered out at Leavenworth, Kansas, September 23, 1865.

3rd REGIMENT CAVALRY.

Regiment organized at Denver, Colo., for 100 days' service August 20 to September 21, 1864. Duty at Denver till September 27. Operations against Arapahoe and Cheyenne Indians in the District of Colorado October to December. Company "G" at Camp Baxter, Company "A" at Camp Cass, Companies "E," "B," "I," "K," "L" and "M" at Camp Elbert, Company "F" at Junction Station, Company "C" at Latham Station, Company "B" at Old Fort Lupton and Company "D" at Valley Station. Skirmish near Valley Station October 10. Engagement with Indians at Sand Creek, Colo., November 29. Mustered out at Denver December 31, 1864.