I am a descendant of Concepcion Madrid & Carmen Coz. In the 1900 US census (for Maricopa Cty, AZ) they list their place of birth as "Mexico." They had 8 children. Listed on the census with them are their children, Lugarda, Evangelita, Maria, but I know they also had sons named Nicasio, Francisco and Juan. If anyone has any information concerning this family, but most especially Conception and/or Carmen, I would be thrilled!