He was born circa 1756. 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 140. The church census recorded that he was married, español, and 26 years old. His household included 3 people.
He married Maria Josefa de la Peña, daughter of Jose Peña and Ana Polonia Lopez on 16 Jul 1780 in Mier. He was 24 years old, and the bride was 18 years old. Her father owned Porción 33, Mier.
Maria Tomasa de la Garza, born 1776.