He was born circa 1773. His father was Francisco Olivares, and his mother was Francisca Perez.
In 1782, he lived in San Juan Bautista del Cojo in household number 131. The church census recorded that he was a child, español, and 9 years old. His household included 6 people:
Francisco Olivares, married, español, age 43.
Francisca Garcia (Perez), married, española, age 35.
Jose Bernadino Olivares, a child, español, age 9.
Maria Josefa Olivares, a young child, española, age 6.
Juan Jose Cristostomo Olivares, a young child, español, age 3.
Maria Dionicia Olivares, a young child, española, age 5.