Ken, according to the book entitled "History of the First Regiment of Tennessee Volunteer Cavalry" - Elisha Pratt was a member of Company M - the book was written by E. R. Carter, who was a member of Company C. If you will obtain a copy of this book, you will find Elisha Pratt on page 330 on the Roster of Company M - enlistment date was December 20, 1862. My great-grandfather, from Eidson, Tn was a member of Company E - his name was William Brooks.