Thanks fellows for all the information. I was corresponding with the descendant of the militiaman, and he asked me to decipher the unit. I suspected it was a militia unit, but I dn't pretend to be an expert on Texas units. I think he has been very favorably impressed with the promptness of the replies, and with the breadth of knowledge of those who monitor this board, as I am.
The fellow is now an expatriate, living in Maine, but I gather his heart is still in Texas. I hope that he'll be able to get to Austin, or get someone to go there for him, and check out the informaiton.
Again, thanks.