My fathers name is Juan Antonio Contreras. He was born 1949. His fathers name was Petrolino Cano(Contreras). He was an orphan and was given the name Contreras. My fathers mothers name was Rosa Margerita Delgado. My father left Mexico in 1974 and han't been back since. We both live in Indiana(U.S.). If anyone has any information we would love to find or here from family.