His father was Lazaro de la Garza Falcon, and his mother was Maria Inez Ayala Saldivar Sosa.
He married Maria Cayetana Flores.
Ines de la Garza. She married Pedro de Elizondo, son of Francisco de Elizondo and Beatriz Gonzalez de Paredes. Her husband died on 30 Jul 1749 in Monterrey. He was 68 years old.
Maria Josefa de la Garza. In 1733, she requested a dispensation to marry Pedro Regalado de la Garza.
Maria Gertudis de la Garza. In 1725, she requested a dispensation to marry Alonso de la Garza.
Joseph Antonio de la Garza. In 1749, he requested a dispensation to marry Maria Gertrudis Sanchez de la Barrera.