It is interesting. Most every old West Texas ranching family has some Jewish ancestors (myself included). We have prayer shawls, menorahs, the whole bit . . all locked away in the attic, alas.
Also, Galveston was a major Jewish immigration location, further bringing in influence.
There's a large crypto-Jewish community in New Mexico. There have been lots of article about them recently.
It's about the same where I live in South Texas. I have a Jewish great grandfather on my mothers side of the family. There were several Jewish ranchers in this area at one time.
(That's right. Jewish cowboys. There is such a thing in case anybody has ever wondered about it.)
Texas has been pretty good to the Jews. Even LBJ had a secret operation sneaking Jews into Texas when Washington was turning them back to Nazi Germany.