He was born circa 1764. His father was Antonio Montalvo, and his mother was Maria Petra Salinas. His father owned land in Porción 54, Mier. In 1782, he lived in Las Jaras in household number 108. The church census recorded that he was a youth, español. His household included 14 people. In 1791, he lived in Mier in household number 84. The church census recorded that he was married, español, and 27 years old. His household included 4 people.
He married Maria Viviana Olivares, daughter of Santiago Olivares and Maria Juliana Flores on 22 Nov 1786. He was 22 years old, and the bride was 19 years old. Her father owned land in Porción 18, Mier.
Jose Antonio Montalvo, born 1788.
Maria Rita Montalvo, born 1790.