Maria Teresa Olivares was baptized on 28 Oct 1767 in Mier, the daughter of Jose Antonio Olivares and Maria Catarina Peña. Her padrino was Jose Santiago de Jesus Olivarez, and her madrina was Maria Juliana Flores (wife).
She married Jose Martin Saenz on 5 Oct 1784 in Mier.Their padrinos were Juan Angel Saenz and Maria Gertrudis - .
In 1782, she lived at El Cojo. The church census recorded that she was an unmarried girl, española, and 19 years old. Her household included 9 people:
Jose Antonio Olivares, español, married, age 38.
Maria Catarina Peña, española, married, age 37.
Jose Salvador de Olivares, español, single, age 21.
Maria Teresa Olivares, española, an unmarried girl, age 19.
Jose Marcelino Olivares, español, a youth, age 16.
Jose de los Reyes Olivares, español, a child, age 11.
Jose Julian Olivares, español, a child, age 9.
Jose Vicente Olivares, español, a young child, age 5.
Maria Josefa Cesaria Olivares, española, a young child, age 5.