My last name is Franco - Correa My mom's dad was born in TX. From what I understand his wife mi abuelita (now separated) lived in Florencia in Zacatecas for many years, in fact that's where they met and married and had my mother MARIA CORREA.
I learned from my grandma that my grandpa that his family came from aguascalientes in MX.My mom was born in Zacatescas Zacatecas.
e-mail me maybe if you give me more info and your sources I can talk to my grandma.
By the way in Tlaltenango Zacatecas they are Correas everywhere.