Juan de Dios de la Garza was the son of Miguel de la Garza Falcon and Gertrudis de Renteria.
He requested a dispensation to marry Juana de Treviño in 1707. Dispensation source: Guerra et al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.196.
Maria Antonia de la Garza was born in Valle de Carrizal. She married Juan Joseph de la Garza.