She was born circa 1763. Her father was Diego Garcia, and her mother was Maria Gertrudis Salinas. Her father owned land in La Noria de Santo Domingo grant, Jim Hogg County, Porción 44, Mier. In 1782, she lived in Mier in household number 60. The church census recorded that she was an unmarried girl, española, and 19 years old. Her household included 8 people.