Miguel de la Garza was the son of Pablo de la Garza and Catarina Gonzalez.
He requested a dispensation to marry Josefa Gonzalez in 1728. Dispensation source: Guerra et al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.82.
He requested a dispensation to marry Maria Josefa de Leon in 1750. Dispensation source: Guerra et al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.146.