Sam,
I checked but did not find him with the 35th. I cross checked using the name John T. Wiggins but could not find both men in the same unit. Wiggins was listed in two units.
Do you have anything more on Thomas?
Here is a list of Texas men named Roach T. or Thomas
Soldier Names
Roach, T. G.
Confederate
Cavalry
11th Regiment, Texas Cavalry
Roach, T. N.
Confederate
Infantry
14th Regiment, Texas Infantry (Clark's)
Roach, Th.
Confederate
Cavalry
2nd Regiment, Texas Cavalry (2nd Mounted Rifles)
Roach, Thomas
Confederate
Cavalry
4th Regiment, Texas Cavalry (4th Mounted Volunteers)
Roach, Thomas Norman
Confederate
Infantry
18th Regiment, Texas Infantry (Ochiltree's)
Roach, Thomas W.
Confederate
Infantry
14th Regiment, Texas Infantry (Clark's)
Thanks,
Gary D. Bray