He married Maria Petra Salinas, daughter of Jose Salinas Camacho and Maria Bartola Peña. Her mother owned Mier 61 grant.
Francisco Ignacio Montalvo. He married Maria Viviana Olivares, daughter of Santiago Olivares and Maria Juliana Flores on 22 Nov 1786.
Maria Cirila Montalvo. She married Jose Marcelo Ramirez, son of Jose Antonio Ramirez Hinojosa and Maria Josefa Leal on 28 Feb 1797.
Francisco Antonio Montalvo. He married Maria Encarnacion Guerra Cañamar, daughter of Juan Manuel Guerra Cañamar and Maria Isabel Treviño on 17 Feb 1806. He owned Las Vivoritas (tract).
Maria Teodora Montalvo, baptized 15 Apr 1768 in Mier. Her padrino was Dn Francisco Guerra, and her madrina was Ana Josefa de la Garza. She married Jose Salvador de Olivares, son of Jose Antonio Olivares and Maria Catarina Peña on 4 Jul 1785 in Mier. Their padrino was Jose _ Lopez, and their madrina was Manuela Flores.
Jose Antonio Montalvo, born 1770. He married Maria Juana Ramirez, daughter of Jose Miguel Ramirez Hinojosa and Maria Antonia Izaguirre on 7 Feb 1809. He married Nestora (Nicolasa) Gonzalez, daughter of Ildefonso Gonzalez and Maria Luisa Saldivar on 1 Jan 1797.
Maria Rosa Montalvo, born 1772. She married Jose Felipe Saenz, son of Marcelino Saenz and Margarita Almaraz on 24 Feb 1789.
Juana Maria Montalvo, baptized 16 Oct 1776. She married Jose Maria Peña, son of Jose Salvador Peña and Maria Alanis on 16 Feb 1795.
Maria Gertrudis Montalvo, baptized 29 Apr 1778.
Maria Antonia Montalvo, born 1780. She married Jose Prudencio Salinas, son of Juan Cristostomo Salinas and Maria Josefa Ramos on 16 Feb 1801.
In 1782, he lived in Las Jaras in household number 108. The church census recorded that he was married, español. His household included 14 people:
Don Antonio Montalvo, married, español.
Maria Petra Salinas, married, española.
Maria del Carmen Montalvo, an unmarried girl, española.
Francisco Ignacio Montalvo, a youth, español.
Maria Josefa Montalvo, an unmarried girl, española.
Maria Cirila Montalvo, an unmarried girl, española.
Maria Teodora Montalvo, an unmarried girl, española.
Jose Antonio Montalvo, a child, español.
Maria Rosa Montalvo, a child, española.
Francisco Antonio Montalvo, a young child, español.
Juana Maria Montalvo, a young child, española, age 4.
Maria Gertrudis Montalvo, a young child, española, age 3.
Maria Antonia Montalvo, a young child, española, age 2.
Joaquin Montalvo, español, age 48.
In 1767, he was granted Mier 54 by the King of Spain.
called Las Jaras - part of Guerra ranch? (same name, location between two other porciones belonging to Guerra)
He died on 28 May 1815.