Muzquiz is in the state of Coahuila. It's approximately 10 km from Palau which in turn is about 35 km from Nueva Rosita, Coah. On highway 57 there is a cut off that goes west to take you to Nueva Rosita. About twelve km south of that cut off is Sabinas, Coah.
Mr. Alderette and I are second (or third) cousins. We've just about exhausted all our relatives here in the U.S. of A and we're hoping you could update our information about folks in Mexico.