I am looking for anyone from the Coahuila, Mexico region whose last name is Gandara, especifically from Cuatro Cieneges or San Juan. My Great Grandfather is Margarito Gandara and married Dolores Navarro. They had a daughter, Maria Gandara(my grandmother) who married marcos Guajardo and they had my dad Ricardo Guajardo Gandara. I appeciate you looking at this. Please respond if you have any information. The family lives in the Del Rio, Texas region..