I saw your posts and decided to send these links on the 8th & 13 Tennessee Tennessee Cavalry. I have also been researching these as some were from the county I was from. I had ancestors fighting in the Civil War from Tennessee. I think there are[five]I have found so far.
http://www.tngenweb.org/civilwar/csacav/csa8cav.html
http://www.tngenweb.org/civilwar/csacav/csadibrell.html
Quote:13th (DIBRELL'S) TENNESSEE CAVALRY REGIMENT
*Known in field, and mustered throughout
war as 8th Tennessee Cavalry Regiment
Organized as Partisan Rangers with 12 companies September, 1862; reorganized with ten companies as regular cavalry October, 1862; paroled at Washington, Georgia, May 11, 1865.

Patricia