Gus, you said you have your family tree? Would these names sound familiar?
Genaro Guevara, Melecio Guevara, Americo Guevara
My greatgrandfather was Genaro Guevara, his son was Jorge Guevara. I only know of these names because of my uncle. He said that his greatgrandfather was Guadalupe Guevara and wife i only know her last name was villarreal. So this is what i know
Guadalupe Guevara & ___Villarreal
Son: Genaro, Melecio, i think Guadalupe jr.
GreatGranson: Jose Luis (my dad)