She was born circa 1775. Her father was Jose Valentin de Olivares, and her mother was Maria de Jesus Guajardo. Her father owned Mier 19 grant.
In 1782, she lived in San Juan Bautista del Cojo in household number 129. The church census recorded that she was a child, española, and 7 years old. Her household included 5 people:
Jose Valentin Olivares, married, español, age 65.
Maria de Jesus Guajardo, married, española, age 55.
Juan Jose Olivares, single, español, age 26.
Juana Maria Olivares, a child, española, age 7.
Margarita Olivares, a young child, española, age 6.