Maria Gertrudis Gonzalez was born circa 1765, the daughter of Florencio Gonzalez and Maria Rita Saldivar.
In 1782, she lived in Mier. The church census recorded that she was an unmarried girl, española, and 17 years old. Her household included 4 people:
Florencio Gonzalez, español, married, age 41.
Maria Rita Saldivar, española, married, age 31.
Jose Santiago Gonzalez, español, single.
Maria Gertrudis Gonzalez, española, an unmarried girl, age 17.