His father was Bernabe de la Garza, and his mother was Josefa Mascorro. In 1750, he lived in Camargo. The census recorded that he was the head of a household, and español. His household had 5 people, and they did not receive government aid to move to the colony.
In 1729, he requested a dispensation to marry Maria Josefa Cantu. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.175.