Juan Jose Saenz was born circa 1776, the son of Jose Basilio Saenz and Maria Josefa de la Garza.
In 1782, he lived at La Bonita/ San Nicolas. The church census recorded that he was a young child, español, and 6 years old. His household included 5 people:
Jose Basilio Saenz, español, married, age 26.
Maria Josefa de la Garza, española, married, age 23.
Jose Felipe de Jesus Saenz, español, a child, age 8.
Juan Jose Saenz, español, a young child, age 6.
Maria Matiana Saenz, española, a young child, age 5.