His father was Sebastian de la Garza, and his mother was Clara Guerra. In 1750, he lived in Revilla in household number 35. His household included 2 people.
In 1748, he requested a dispensation to marry Antonia Cavazos. They were married in 1748. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.125.