National Park Service. U.S. Civil War Soldiers, 1861-1865 [database on-line] shows:

Name: John Apperson
Side: Confederate
Regiment State/Origin: Virginia
Regiment Name: 21 Battalion Virginia Infantry
Regiment Name Expanded: 21st Battalion, Virginia Infantry
COMPANY: E
Rank In: Private
Rank In Expanded: Private
Rank Out: Private
Rank Out Expanded: Private
Alternate Name: John/Apason
Film Number: M382 roll 2

Name: John C. Apperson
Side: Confederate
Regiment State/Origin: Virginia
Regiment Name: 3 Virginia Cavalry
Regiment Name Expanded: 3rd Regiment, Virginia Cavalry
COMPANY: F
Rank In: Corporal
Rank In Expanded: Corporal
Rank Out: Corporal
Rank Out Expanded: Corporal
Film Number: M382 roll 2

Name: John C. Apperson
Side: Confederate
Regiment State/Origin: Virginia
Regiment Name: 4 Virginia Cavalry
Regiment Name Expanded: 4th Regiment, Virginia Cavalry
COMPANY: E
Rank In: Private
Rank In Expanded: Private
Rank Out: Private
Rank Out Expanded: Private
Film Number: M382 roll 2

in addition to the John S. Apperson listed earlier.

Name: John S. Apperson
Side: Confederate
Regiment State/Origin: Virginia
Regiment Name: 4 Virginia Infantry
Regiment Name Expanded: 4th Regiment, Virginia Infantry
COMPANY: D
Rank In: Private
Rank In Expanded: Private
Rank Out: Hosp. Stew.
Rank Out Expanded: Hospital Steward
Film Number: M382 roll 2

Name: John Apperson
Occupation: Teacher
Enlistment Date: 28 Jun 1861
Enlistment Place: New Kent Court House, Virginia
Side Served: Confederacy
State Served: Virginia
Service Record: Enlisted as a Private on 28 June 1861 at the age of 23.
Enlisted in 3rd Cavalry Regiment Virginia on 28 Jun 1861.
Discharged from 3rd Cavalry Regiment Virginia on 17 Oct 1862.
Height: 5'10 "
Eye Color: dark
Hair Color: dark
Complexion: dark

Name: John Apperson
Enlistment Date: 12 Mar 1862
Side Served: Confederacy
State Served: Virginia
Service Record: Enlisted as a Private on 12 March 1862.
Enlisted in Company E, 4th Cavalry Regiment Virginia on 12 Mar 1862.

Name: John Apperson
Occupation: Medical Student
Enlistment Date: 18 Apr 1861
Side Served: Confederacy
State Served: Virginia
Birth Date: 31 Aug 1832
Death Date: 9 Aug 1908
Service Record: Enlisted as a Private on 18 April 1861.
Enlisted in Company D, 4th Infantry Regiment Virginia on 18 Apr 1861.

Most Apperson families (20) living in the US in 1840 lived in VA.

There was a John C. Apperson b. abt 1798 and living in New Kent Co, Virginia who was married to a Susan Travis Christian.

Name: John E. Epperson
Enlistment Date: 6 Mar 1862
Enlistment Place: Danville, Virginia
Side Served: Confederacy
State Served: Virginia
Service Record: Enlisted as a Private on 6 March 1862.
Enlisted in Company B, 18th Infantry Regiment Virginia on 6 Mar 1862.
Killed Company B, 18th Infantry Regiment Virginia on 5 May 1862 at Williamsburg, VA.

Name: John Epperson
RESIDENCE: Patrick County, Virginia
Occupation: Laborer
Side Served: Confederacy
State Served: Virginia
Service Record: Enlisted as a Private.
Enlisted in Company K, 50th Infantry Regiment Virginia.
Died as a prisoner Company K, 50th Infantry Regiment Virginia on 29 Feb 1864 at Point Lookout, MD.

Name: John Epperson
Enlistment Date: 7 Dec 1863
Enlistment Place: Hillsville, Virginia
Side Served: Confederacy
State Served: Virginia
Service Record: Promoted to Full Sergeant.
Enlisted as a Private on 7 December 1863.
Enlisted in Company C, 26th Cavalry Regiment Virginia on 7 Dec 1863.
Deserted from Company C, 26th Cavalry Regiment Virginia on 22 Mar 1865 at Camp Morton, IN.

Name: John Epperson
RESIDENCE: Scott County, Virginia
Occupation: Farmer
Enlistment Date: 15 Mar 1862
Side Served: Confederacy
State Served: Virginia
Service Record: Enlisted as a Private on 15 March 1862 at the age of 26. [b. abt 1836]
Enlisted in Company H, 48th Infantry Regiment Virginia on 2 Apr 1862.

JR