Here one Goggle hit:
Regiments. Caroline County men most often served in regiments (and companies) from their home county. At times, however, individuals and small groups can be found serving in a regiment of a neighboring county. Later in the war, Confederate units often reorganized. Men from Caroline County can be found in the following regiments:
- 9th Regiment, Virginia Cavalry (Confederate). Company B (Caroline Light Dragoons).
- 9th Regiment, Virginia Infantry (Confederate). Company B (Caroline Light Dragoons).[17]
- 24th Regiment, Virginia Cavalry (Confederate). Company F.[18]
- 30th Regiment, Virginia Infantry (Confederate). Company E (Caroline Grays), Company F (Bowling Green Guards), Company G (Childsburg Light Infantry), and Company H (Sparta Grays).[19]
- 47th Regiment, Virginia Infantry (Confederate). Company E (Port Royal Guards).[20]
- Lightfoot's Battalion, "Caroline Light Artillery," (Confederate)
https://familysearch.org/learn/wiki/en/