Maria Teodora Montalvo was born on 1 Apr 1768 in Mier, the daughter of Antonio Montalvo and Maria Petra Salinas. Her padrino was Dn Francisco Guerra, and her madrina was Ana Josefa de la Garza.
She married Jose Salvador Olivares on 4 Jul 1785 in Mier.Their padrinos were Jose _ Lopez and Manuela Flores.
In 1782, she lived at Las Jaras. The church census recorded that she was an unmarried girl, española. Her 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.