In the first organization of regiment, company "A" was a Louisiana unit, and 3 companies were from Alabama. Following in the company of Louisiana and Alabama companies were transferred
That's correct,
Wood's Regiment Mississippi Volunteer Cavalry
[originally Wirt Adams's Regiment Mississippi Volunteer Cavalry; also called Wirt Adams's Regiment Confederate Volunteer Cavalry; Wood's Regiment Confederate Volunteer Cavalry; 1st Mississippi Cavalry]
[Companies
A(1) B E F(1) F(2) L ?]
From Sifakis,
Compendium of the C.S. Armies: Mississippi, 54-56:
Also Known As: 1st [Mississippi] Cavalry Regiment; W. Adams' Confederate Cavalry Regiment; Wood's Confederate Cavalry Regiment
Organization: Organized for the war on October 15, 1861. 1st Company G became independent in April 1862. Company N became 2nd Company G sometime after April 1862. 1st Company A became an independent unit in April 1862. Companies C, 1st D, and 1st M, were detached on May 16, 1862 and became Companies A, E, and B, respectively, 3rd Alabama Cavalry Regiment on July 1, 1862. 2nd Company M was organized on May 3, 1862 and was subsequently assigned to this regiment. 1st Company A became Company A, 15th Louisiana Cavalry Battalion on September 26, 1862. 2nd Company A was organized from a part of Company K on May 1, 1864. Surrendered by Lieutenant [General] Richard Taylor, commanding the Department of Alabama, Mississippi, and East Louisiana, at Citronelle, Alabama on May 4, 1865.
First Commander: [William] Wirt Adams (COL)
Field Officers: Stephen B. Cleveland (MAJ); James Hagan (MAJ); Isaac F. Harrison (MAJ); Thomas Lewers (MAJ, LTC); Robert C. Wood, Jr. (LTC, COL)
Assignments: Cavalry, Hardee's Division, Central Army of Kentucky, Department #2 (Oct 61-Mar 62); Beall's Cavalry Brigade, Department #2 (Apr-May 62); Beall's Cavalry Brigade, Department #2 (May-Jul 62); Armstrong's Cavalry Brigade, Price's Corps, Army of West Tennessee, Department #2 (Jul-Oct 62); Armstrong's Cavalry Brigade, Price's Corps, Army of West Tennessee, Department of Mississippi and East Louisiana (Oct 62); Unattached, 2nd Military District, Department of Mississippi and East Louisiana (Dec 62-Jan 63); Unattached, Smith's Division, 2nd Military District, Department of Mississippi and East Louisiana (Jan-Feb 63); Unattached, Maury's Division, 2nd Military District, Department of Mississippi and East Louisiana (Apr 63); Unattached, Department of Mississippi and East Louisiana (Apr-Jun 63); J. Adams' Brigade, Walker's Division, Department of the West (Jun 63); Cosby's Brigade, Jackson's Cavalry Division, Department of the West (Jun-Jul 63); Cosby's-Jackson's-Cosby's Brigade, Jackson's Cavalry Division, Department of Mississippi and East Louisiana (Jul-Aug 63); Cosby's Brigade, Jackson's Division, Lee's Cavalry Corps, Department of Mississippi and East Louisiana (Aug-Dec 63); W. Adams' Brigade, Jackson's Division, Lee's Cavalry Corps, Department of Mississippi and East Louisiana (Dec 63-Jan 64); W. Adams' Brigade, Jackson's Division, Lee's Cavalry Corps, Department of Alabama, Mississippi, and East Louisiana (Jan-May 64); Mabry's Brigade, W. Adams' Cavalry Division, Department of Alabama, Mississippi, and East Louisiana (May-Jun 64); Wood's Brigade, W. Adams' Cavalry Division, Department of Alabama, Mississippi, and East Louisiana (Jun-Aug 64); Wood's Brigade, District North of the Homochito, Department of Alabama, Mississippi, and East Louisiana (Aug-Oct 64); Central Sub-district, District of Mississippi and East Louisiana, Department of Alabama, Mississippi, and East Louisiana (Oct 64-Feb 65); W. Adams' Brigade, Chalmer's Division, Forrest's Cavalry Corps, Department of Alabama, Mississippi, and East Louisiana (Feb-May 65)
Battles: Woodbury [KY] [detachment] (October 29, 1861); Morgantown [KY] [detachment] (October 31, 1861); Scout in the vicinity of Russellville [KY] [detachment] December 5-8, 1861); Reconnaissance from Shiloh Battlefield [detachment] (April 8, 1862); Corinth Campaign (April-June 1862); Iuka (September 19,.1862); Corinth (October 3-4, 1862); [Grant's] Central Mississippi Campaign (October 1862-January 1863); Grierson's Raid (April 17-May 2, 1863); Union Church [MS] [skirmish] [three companies] (April 28, 1863); Vicksburg Campaign (May-July 1863); Raymond (May 12, 1863); Big Black River Bridge [detachment] (May 17, 1863); Yazoo River (May 23-31, 1863); Jones' Plantation, near Birdsong Ferry (June 22, 1863); Meridian Campaign (February-March 1864); Concord Church (December 1, 1864); Wilson's Raid (March-April 1863)
From Crute,
Units of the C.S. Army, 194:
"
Wirt Adams' Cavalry Regiment [also called 1st Mississippi Cavalry] was organized during the summer of 1861 and mustered into Confederate service at
Jackson, Mississippi. Its members were recruited in the counties of Claiborne, Lowndes, Tallahatchie, Warren, and Yazoo. The unit served under Chalmers, F.C. Armstrong, W.H. Jackson, W.C. Wood, and W. Adams. It confronted the Federals in
Kentucky,
Tennessee, and
Alabama, but for the most part it fought in
Mississippi. In December, 1861, it contained 29 officers and 400 men, and in January, 1863, there were 35 officers and 539 men present for duty. Few surrendered in May, 1865. The field officers were Colonels Wirt Adams and Robert C. Wood, Jr.; Lieutenant Colonel Thomas Lewers; and Majors Stephen B. Cleveland, James Hagan, and Isaac F. Harrison."
ROSTER
Company A(1st) (Tensas Cavalry, Harrison's, Bondurant's) [later
Company A, 15th Battalion Louisiana Cavalry]
Tensas
From Bergeron,
La. Confed. Units, 179:
"
Tensas Cavalry Company (Tensas). Captain Isaac F. Harrison, promoted major August 15, 1862; Captain Albert Bondurant. Mustered in August 29, 1861, at
Memphis, Tennessee. Became 1st Company A, Wood's Regiment Cavalry, on October 15, 1861. Detached September 26, 1862, and returned to
Louisiana. Became Company A, 15th Louisiana Cavalry Battalion, in December, 1862."
PECK,
William T. Pvt. // CSRC, Index. // Same W.T.P. as in Company H, 3rd (Harrison's) Regiment Louisiana Cavalry; & 9th Regiment Louisiana Infantry?
1 Co. A(1), Wood's MS Cav.
Individuals from non-Cajun families, CSRC Index
http://www.acadiansingray.com/Wood's Regt. MS Cav.htm