Maria Guadalupe Lopez de Jaen was born circa 1763, the daughter of Luis Lopez de Jaen and Juana Maria Villarreal.
In 1782, she lived at Santa Gertrudis. The church census recorded that she was an unmarried girl, española, and 19 years old. Her household included 6 people:
Luis Lopez de Jaen, español, married, age 51.
Juana Maria Villarreal, española, married, age 45.
Toribio Lopez de Jaen, español, single, age 25.
Jose Miguel Lopez de Jaen, español, single, age 22.
Maria Guadalupe Lopez de Jaen, española, an unmarried girl, age 19.
Jose Maria Lopez de Jaen, español, a child, age 10.