She was born circa 1780. Her father was Ygnacio Treviño, and her mother was Margarita Gutierrez. Her father owned Las Animas grant, Jim Hogg County.
In 1782, she lived in Mier in household number 22. The church census recorded that she was a young child, española, and 2 years old. Her household included 8 people:
Don Ygnacio Treviño, married, español, age 35.
Margarita Gutierrez, married, española, age 26.
_ Treviño, a youth, español, age 19.
Ysavel Maria Treviño, a young child, española, age 2.
Maria Josefa Treviño, a child, casta, age 8.
Maria Caridad Treviño, a young child, casta, age 6.
Julia de la Cruz, an unmarried girl, india, age 24.
Juana de la Cruz, a young child, india, age 5.
In 1791, she lived in Mier in household number 1. The church census recorded that she was a child, española, and 11 years old. Her household included 6 people, 3 of whom were likely servants:
Dn Ygnacio Treviño, married, español, age 43.
Da Margarita Gutierrez, married, española, age 35.
Ysavel Maria Treviño, a child, española, age 11.
Julia de la Cruz, an unmarried girl, india, age 42.
Maria Josefa Treviño, an unmarried girl, india, age 16.
Juana de la Cruz, an unmarried girl, india, age 14.