His father was Antonio Montalvo, and his mother was Maria Petra Salinas. His father owned 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.
He married Maria Viviana Olivares, daughter of Santiago Olivares and Maria Juliana Flores on 22 Nov 1786. the bride was 19 years old. Her father owned Porción 18, Mier.