My father's name was Angel Monarrez from Santa Maria de Oro. At the time a small mountain town in the state of Durango.
He left Mexico to pursue a boxing career in the 40's and 50's. He was somewhat well known in the city of Chihuahua, where me met my mother.
It is my understanding that in the town of Santa Maria de Oro there is a large Monarrez family tree. Did you name the name is Basque orgin?