Try these books.
Thanks a bunch! I already ordered the book. Now I hope I haven’t wasted $33.
There is a second book with more families at the link also. Some libraries in that part of the state should have those books. There was no mention of Bevil in my books, which deal more with west and central Texas and the Alamo.
Good luck. You will be quite popular in your family if you come up with some good finds.