Question: When was the Arkansas Civil War Confederate cavalry regiment commanded by Churchill , Reynolds , and Harper dismounted ?

text: List of Arkansas Civil War Confederate units
Confederate Forces raised in Arkansas -- Cavalry
Cavalry regiments were organized from companies ( also called , `` troops '' ) authorized at up to 100 men , ten companies made up a regiment . Two or more companies might be organized into a battalion ( also called a `` squadron '' ) .
This is a list of Arkansas Civil War Confederate Units, or military units from the state of Arkansas which fought for the Confederacy in the American Civil War. The list of Union units is shown separately. Like most states, Arkansas possessed a prewar Militia organization, which consisted of seventy one regiments, organized into eight brigades, and divided into two divisions. In addition to its standard militia regiment or regiments, each county was authorized to create up to four Volunteer Militia Companies. While none of the prewar militia regiments were enrolled into Confederate service, many of the existing Volunteer Militia Companies were enrolled into new volunteer regiments. Other new Volunteer Companies were raised with no connection to the prewar militia. Immediately following secession, the State Military Board began organizing regiments of State Troops. Many of these regiments were eventually transferred into Confederate Service. Some Volunteer Regiments were organized under direct authority of the new Confederate Government and were never organized as State Troops. In April 1862, the Confederate Congress passed a conscription law and new companies and regiments were organized almost entirely of conscripted (drafted) men. Volunteers usually went into already existing units. The secession convention also authorized each county to organize Home Guard units made up of men too young or too old or otherwise exempt from conscription or militia service.
Regiment Organization Date Commanders Alternated designations
1st Arkansas Mounted Rifles June 16 , 1861 Colonel Thomas J. Churchill Colonel Daniel H. Reynolds Colonel Robert W. Harper 1st Arkansas Mounted Rifles ( Consolidated )
1st Arkansas Mounted Rifles ( Consolidated ) April 9 , 1865 Colonel Henry G. Bunn 1st Arkansas Mounted Rifles 2nd Arkansas Mounted Rifles 4th Arkansas Infantry Regiment . 4th Arkansas Infantry Regiment . 31st Arkansas Infantry Regiment . 9th Arkansas Infantry Regiment . 9th Arkansas Infantry Regiment . 25th Arkansas Infantry Regiment
1st Arkansas Cavalry Regiment ( Crawford 's ) December 30 , 1863 Colonel William A. Crawford 10th Arkansas Cavalry Regiment Crawford 's Arkansas Cavalry Regiment
1st Arkansas Cavalry Regiment ( Dobbin 's ) Spring 1863 Colonel Archibald S. Dobbins Major Samuel Corley Dobbins 's Brigade Chrisman 's Cavalry Battalion
1st Arkansas Cavalry Regiment ( Monroe 's ) September 1862 Colonel James Fleming Fagan Colonel James Cade Monroe 6th Regiment Arkansas Cavalry , 4th Arkansas Cavalry , 1st Trans-Mississippi Cavalry
2nd Arkansas Cavalry Regiment ( Slemons 's ) 15 May 1862 Colonel William Ferguson Slemons Lt. Col T. W. Jackman 2nd Arkansas Cavalry Battalion 6th Arkansas Cavalry Battalion 4th Arkansas Cavalry Regiment 18th Arkansas Cavalry Battalion
2nd Arkansas Cavalry Regiment ( Morgan 's ) December 24 , 1863 Colonel Thomas J. Morgan 5th Arkansas Cavalry Regiment Newton 's Regiment Arkansas Cavalry , Morgan 's Regiment Arkansas Cavalry , 2nd Arkansas Cavalry Regiment , 8th Arkansas Cavalry Regiment ,
2nd Arkansas Mounted Rifles July 29 , 1861 Colonel James M. McIntosh Colonel Benjamin T. Embry Colonel Harris Flanagin Lieutenant Colonel James A. Williamson 1st Consolidated Mounted Rifles
3rd Arkansas Cavalry Regiment June 10 , 1861 ( State Service ) July 29 , 1863 ( Confederate Service ) Colonel Solon Borland Colonel Samuel G. Earle Colonel Anson W. Hobson Lieutenant Colonel M. J. Henderson 1st Arkansas Cavalry Battalion
4th Arkansas Cavalry Regiment December 15 , 1863 Colonel Anderson Gordon Colonel Charles A. Carroll Colonel Lee L. Thomson Gordon 's Arkansas Cavalry Regiment 2nd ( Gordon 's ) Arkansas Cavalry Regiment 9th Arkansas Cavalry Regiment 11th Arkansas Cavalry Regiment 1st Arkansas Cavalry Regiment ( Carrolls )
5th Arkansas Cavalry Regiment April 1863 Colonel Robert C. Newton 2nd Arkansas Cavalry Regiment ( Morgan 's )
6th Arkansas Cavalry Regiment   1st Arkansas Cavalry Regiment ( Monroe 's ) 1st Arkansas Cavalry Regiment ( Fagan 's )
7th Arkansas Cavalry Regiment July 25 , 1863 Colonel John F. Hill Hill 's Cavalry Battalion Hill 's Arkansas Cavalry Regiment
8th Arkansas Cavalry Regiment December 24 , 1863 Colonel Thomas J. Morgan Newton 's Regiment Arkansas Cavalry , Morgan 's Regiment Arkansas Cavalry , 2nd Arkansas Cavalry Regiment ; 5th Regiment Arkansas Cavalry
9th Arkansas Cavalry Regiment December 15 , 1863 Colonel Anderson Gordon 4th Arkansas Cavalry Regiment
10th Arkansas Cavalry Regiment ( Witt 's ) Summer 1864 Colonel Allen R. Witt 10th Arkansas Infantry Regiment
10th Arkansas Cavalry Regiment ( Newton 's ) October 31 , 1864 Colonel Robert C. Newton 3rd Regiment of Arkansas State Cavalry
11th Arkansas Cavalry Regiment 1864 Colonel John L. Logan 11th Arkansas Infantry Regiment Logan 's Arkansas Cavalry Regiment 11th and 17th Consolidated Arkansas Infantry Regiment
12th Arkansas Cavalry Regiment February 15 , 1864 Colonel John C. Wright 2nd Cavalry Battalion , Arkansas State Troops Wright 's Arkansas Cavalry Regiment
13th Arkansas Cavalry Regiment Unknown Colonel James J. Clarkson Clarkson 's Battalion Confederate Cavalry ( Independent Rangers )