Well, he doesn't seem to be listed. There is a George H. Todd in the 46th NC Infantry, Co. "A", but that would not appear to be your man. There are four George Todds, but none in an AL or TX unit. There are no Todds with the initials G. H. in any unit, and there is one Todd with no first name listed in Mann's TX Cavalry, Co. "D". Again, that would not seem to be your man.

No other possibilities that I see...