Sorry, I provided the incorrect source document which is:
https://familysearch.org/learn/wiki/en/Caroline_County,_Virginia

The bracketed numbers, 17-20 are the source documents below:

17. Robert K. Krick, 9th Virginia Cavalry (Lynchburg, Va.: H.E. Howard, c1982). FHL Book 975.5 M2vr v. 2.

18. Darryl Holland, 24th Virginia Cavalry (Lynchburg, Va.: H.E. Howard, 1997). FHL Book 975.5 M2vr v. 128.

19. Robert K. Krick, 30th Virginia Infantry (Lynchburg, Va.: H.E. Howard, 1983). FHL Book 975.5 M2vr v. 4.

20. Homer D. Musselman, 47th Virginia Infantry (Lynchburg, Va.: H.E. Howard, 1991). FHL Book 975.5 M2vr v. 73.

https://familysearch.org/learn/wiki/en/Caroline_County,_Virginia#Civil_War