Joe,

I checked the Morman site and found a listing for Capt. Thomas H. Bowen, Van Alstyne, Grayson County Texas.

Also, I found a listing for Thomas Hallum Bowen, born 10/9/1816 and wife Nancy E. Blassingame Bowen Born 1820.

Does this sound like the people you are looking for? If so maybe we can find a little more info.

Thanks,
Gary D. Bray