He was born circa 1754. His father was Juan de la Garza, and his mother was Maria Gertrudis Chapa. His father owned Porción 23, Mier. In 1782, he lived in San Nicolas/ Santa Rosalia de la Bonita in household number 138. The church census recorded that he was married, español, and 28 years old. His household included 4 people.
He married Maria Rosalia Saenz, daughter of Marcelino Saenz and Margarita Almaraz on 29 May 1774 in Camargo. He was 20 years old, and the bride was 16 years old. Her father owned Porción 25, Mier.
Maria Dolores de la Garza, born 1778.
Maria Gertrudis de la Garza, born 1781.