This sounds familiar to me. My family has a large concentration in Arizona in Mesa, Tempe, and Tucson.
My grandfather's name was Antonio Tristan Mejia. He was one of seven I believe.
He had siblings names MANUEL, LUPE, ROBERTO, and some other I just dont' recall...
From the research that I have done, my great-great-grandfather (Manuel) was brought the new world by his uncle and they were in places like Zacatecas and some other Mexican states before they settled in Arizona, where they had horses or cattle in the hills.