The first T. D. Williams is my T. D. Williams. My problem is finding his previous unit when he joined in 1861 at Honey Grove, TX. I have also found three who might be him in various other units - the 6th, 8th and 15 TX Cavalry. I guess it's just a matter of finding further documents to prove or disprove which unit he was in prior to Pea Ridge.
I appreciate your help!
Clydene