Maria Josefa Barrera was born circa 1767, the daughter of Jose Gregorio Barrera and Maria Juliana Benavides.
In 1782, she lived at Rancho (Barrera). The church census recorded that she was an unmarried girl, española, and 15 years old. Her household included 5 people:
Jose Gregorio Barrera, español, married, age 33.
Maria Juliana Benavides, española, married, age 29.
Maria Josefa Barrera, española, an unmarried girl, age 15.
Jose Manuel Barrera, español, a child, age 8.
Jose Maximo Barrera, español, a young child, age 4.