He married Maria Petra Salinas.
Francisco Ignacio Montalvo married Maria Viviana Olivares.
Maria Cirila Montalvo married Jose Marcelo Ramirez.
Francisco Antonio Montalvo married Maria Encarnacion Guerra Cañamar. He owned Las Vivoritas.
Maria Teodora Montalvo was born on 1 Apr 1768 in Mier. She married Jose Salvador Olivares.
Jose Antonio Montalvo was born on 29 Apr 1770. He married Nestora (Nicolasa) Gonzalez, Maria Juana Ramirez.
Maria Rosa Montalvo was born on 23 Jan 1772. She married Jose Felipe Saenz.
Juana Maria Montalvo was baptized on 16 Oct 1776. She married Jose Maria Peña.
Maria Gertrudis Montalvo was baptized on 29 Apr 1778.
Maria Antonia Montalvo was born circa 1780. She married Jose Prudencio Salinas.
In 1767 he was granted Mier 54 by the King of Spain.
In 1782, he lived at Las Jaras. He was the ranch owner. The church census recorded that he was married, español. The priest referred to him with the title Don. His household included 14 people:
Don Antonio Montalvo, español, married. He was the ranch owner.
Maria Petra Salinas, española, married.
Maria del Carmen Montalvo, española, an unmarried girl.
Francisco Ignacio Montalvo, español, a youth.
Maria Josefa Montalvo, española, an unmarried girl.
Maria Cirila Montalvo, española, an unmarried girl.
Maria Teodora Montalvo, española, an unmarried girl.
Jose Antonio Montalvo, español, a child.
Maria Rosa Montalvo, española, a child.
Francisco Antonio Montalvo, español, a young child.
Juana Maria Montalvo, española, a young child, age 4.
Maria Gertrudis Montalvo, española, a young child, age 3.
Maria Antonia Montalvo, española, a young child, age 2.
Joaquin Montalvo español, age 48.