Juan Javier Olivares was born circa 1741, the son of Jose Valentin de Olivares and Maria de Jesus Guajardo.
He married Maria Antonia Garza (Garcia).
In 1782, he lived at El Cojo. The church census recorded that he was married, español, and 41 years old. His household included 2 people:
Juan Javier Olivares, español, married, age 41.
Maria Antonia de la Garza, española, married, age 30.