She was born circa 1773. Her father was Juan de la Garza, and her mother was Maria Gertrudis Chapa. Her father owned Mier 23 grant.
She married Jose Francisco Lopez, son of Jose Benito Lopez and Maria Josefa Cano on 7 Jan 1789. She was 16 years old. His father owned Camargo 15 grant.
She married Jose Antonio Benavides, son of Juan Jose Benavides Recio and Isabel Maria Guerra Cañamar on 9 Aug 1797 in Mier. She was 24 years old, and the groom was 26 years old. It was her second marriage.
In 1782, she lived in San Nicolas/ Santa Rosalia de la Bonita in household number 139. The church census recorded that she was a child, española, and 9 years old. Her household included 8 people:
Don Juan de la Garza, married, español, age 59.
Maria Gertrudis Chapa, married, española, age 51.
Juana Maria de la Garza, an unmarried girl, española, age 21.
Maria Guadalupe de la Garza, an unmarried girl, española, age 20.
Juan Jose de la Garza, a youth, español, age 17.
Maria Gertrudis de la Garza, an unmarried girl, española, age 13.
Jose de Jesus de la Garza, a child, español, age 11.
Maria Juliana de la Garza, a child, española, age 9.