Bowpi is such a pretty girl! I love that sweet face. And that red spot on her collar is distinctive, so maybe that will help you find her breeder. I don't know any breeders in Texas, but I believe Pat Marshall of Berimo is near Houston and has been breeding for a long time. Perhaps she could give you information or direction? You could also try BRAT, since they've probably had experience with Houston dogs, and you could try the BCOA affiliates in TX to see if anybody has a breeder list or ideas. And maybe some TX members will chime in.
It's definitely possible! In 2003, my parents rescued a B&W boy from NC and were told that he didn't work out as a show dog, but had AKC champions in his pedigree. It took a while, but we were able to trace him back to a California breeder. His champion lines were way back. He was a wonderful boy– though, sadly, a Fanconi dog-- and my mother still misses him like crazy. Good luck with your search, and I hope you have success! The Internet makes it so much easier, and once you have somewhere to start, Sally's database is a wonderful resource.