She was born circa 1781. Her father was Jose Damian de la Garza, and her mother was Maria Rosalia Saenz.
In 1782, she lived in San Nicolas/ Santa Rosalia de la Bonita in household number 138. The church census recorded that she was a young child, española, and 1 years old. Her household included 4 people:
Jose Damian de la Garza, married, español, age 28.
Maria Rosalia Saenz, married, española, age 24.
Maria Dolores de la Garza, a young child, española, age 4.
Maria Gertrudis de la Garza, a young child, española, age 1.