A battalion is an independent unit consisting of two or more companies, but less than a regiment of 10 companies.

This site might help in your quest. If you have a specific soldiers name in mind, we might be able to follow his service.

AN EXCITING NEW BOOK RELEASE

Clarkson’s Battalion (CSA):
A Brief History and Roster

By David L. Haimerl & published by Two Trails Publishing
http://tsmarkit.tripod.com/