I am looking for information on William Brewer who was born about 1814-1815 to Issac Brewer and Elizabeth Meade. He was married to Margaret Marcum in Lawrence Coounty, KY in 1848. They had a son named James Harrison Marcum. He was later married to Rebecca (Lawrence?). He served in the Confederate Army as a Serg. in the 4th VA Cavalry. He was alive in 1886. His father was in the Logan CO, KY Tax List is 1833. He had a brother named Lewis who married Rebecca Marcum. Any assistance appreciated.

The Roster of Confederate Soldiers, 1861-1865, does not show a James Harrison Marcum but does show:

Marcum, James H. VA 25th Cav. Co.H Cpl.

as well as

Marcum, James VA 2nd Cav. Co.C
Marcum, James VA Cav. Swann's Bn. Vincent's Co.

and

Marcum, F. VA Cav. Swann's Bn. Vincent's Co.
Marcum, Kelley VA 16th Cav. Co.K
Marcum, Thomas VA Cav. Swann's Bn. Vincent's Co.
Marcum, William VA Cav. 34th Bn. Co.B

Checking the roster for the 4th VA Cav does not show any "Marcum" listed for that unit.

25th Regt VA Cav began life as the 27th Bn VA Cav, Partisan Rangers or Mounted Rifles [aka Trigg's Bn, Partisan Rangers], organized about 09/01/1862. Capt George T. Lyle's Co was added and designation changed to 25th Regt VA Cav by S.O.#159, A&IGO, 07/08/1864.
Co H = Capt James A. Lamer's Co; formerly Co H, 27th Bn Va Cav; Co organized 10/03/1862; mustered 11/10/1862; served in the command when it was known as Trigg's Bn Partisan Rangers

2nd Regt VA Cav
Organized, May 1861, Lynchburg
Field Officers appointed 05/08/1861
Ten Co's, A to K, enlisted for 1 year between 05/11-06/08/1861
Originally in State service; entered Confederate service 07/01/1861
Until 10/31/1861, regt was called 30th Regt Va Vols
04/24/1862, reorganized
Did not surrender at Appomattox CH but disbanded at Lynchburg 04/10/1865
Co C = Botetourt Dragoons, Botetourt County; organized at Fincastle in January 1860; enrolled for active service at Fincastle 05/17/1861; mustered for State service at Lynchburg 05/20/1861; mustered as Capt Andrew L. Pitzer's Co Mounted Rangers knoen as Botetourt Dragoons
Captains: Andrew Lewis Pitzer [formerly Capt 5th Regt Cav Va Militia]; Cary Breckinridge; James Breckinridge

VA Cav, Swann's Bn, Vincent's Co
Swann's Bn, aka Carpenter's Bn, organized with six "unattached" companies assigned per S.O. # 130, Hdqtrs W Virgiba & E Tennessee, dated 12/28/1864
Increased to 7 companies 01/19/1865 by the division of Capt Tabler's Co
Capt Elias Vincent's Co; formerly Capt Elias Vincent's unattached Co Va Cav
Co enlisted 11/01/1864, by LtCol Witcher of the 34th Bn Va Cav & assigned to this Bn per S.O. #130, hdqtrs, Dept W Va & E Tn, 12/28/1864

Roster of Confederate Soliders, 1861-1865, did not show a Willliam Harrison Brewer and no Brewer with the 4th Va Cav, but did show:

Brewer, William H. VA 3rd Cav. Co.C Cpl.

also

Brewer, John E. VA 3rd Cav. Co.C

3rd Regt Va Cav, aka 2nd Regt Va Cav until Oct 1861, was formed of independent companies which had mustered into State service for 1 year
Regt accepted for Confederate service 07/01/1861
Reorganized 04/25/1862
Originally, regt was formed of 11 Co's, A to L
Co I [1st] reorganized 05/01/1862 & was assigned as Co H, 5th Regt Va Cav
Remaining co's changed letter designation according to the rank of their Captains
Co C = Black Walnut Dragoons, Black Walnut Light Dragoons, Halifax County; formerly Co H; originally William H. Easley's Co Va Cav; co organized prior to July 1859; enrolled 05/20/1861; mustered into State service 05/28/1861 for 1 year
Captains: Robert Douthat, Benjamin Harrison Harrison, Franklin Guy, John Lamb

I am researching the Brewer family of which many settled in Indiana but one, Benjamin Brewer was in Tyler Co, VA (now WV). Would either William Brewer be a grandson to David through one of his sons? Does someone know if David died in Tyler Co or elsewhere? Thanks for any info.

Steve