He was born circa 1772, and was baptized 29 Mar 1772. His father was Jose Antonio Olivares, and his mother was Maria Catarina Peña. His father owned Porción 17, Mier. In 1782, he lived in San Juan Bautista del Cojo in household number 128. The church census recorded that he was a child, español, and 9 years old. His household included 9 people.
He married Maria Gertrudis Lopez, daughter of Jose Cayetano Lopez and Maria Antonia Gonzalez on 8 Feb 1797. He was 25 years old, and the bride was 18 years old.