She was born circa 1776. Her father was Jose Cristobal Garza, and her mother was Maria Josefa Moreno.
In 1782, she lived in Miguel Perez in household number 149. The church census recorded that she was a young child, india, and 6 years old. Her household included 5 people:
Jose Cristobal Garza, married, indio, age 36.
Maria Josefa Moreno, married, india, age 21.
Maria Viviana Garza, a child, india, age 8.
Jose Eugenio Garza, a young child, indio, age 6.
Maria Agustina Garza, a young child, india, age 6.