It appears the captain was in the consolidated unit, later in the War (early 1865) when the 10th and 11th TN Cavalry regiments were merged together. In the NARA system, he is listed in the 11th TN. Is that correct? It really makes a difference on when and where he was mustered. They served alternately under Wheeler and Forrest. Not a bad resume. The website below has some very good information and I have some anecdotal family stories that might possibly interest you. Also, try posting an inquiry on the TN Message Board if you have not done so.
Pvt. Joe