To be honest with you, most folks think of Nathan Bedford Forrest and the 7th Tenn. Cav, CSA when someone says the 7th Tenn.Cav.
Those 7th Tenn. Cav. CSA guys were some really "bad dudes."
I do have a photo of a 7th Tenn. Cav. CSA man, but after the war. That poor guy looked like he had been to h--- and back.
Forrest was an outstanding leader and that is by anyone's standards.
Good luck on your photo search. I would love to have one of the 7th Tenn. Cav. CSA myself.