He was born circa 1717. His father was Juan de Olivares Benavides, and his mother was Maria Vela de los Reyes. In 1750, he lived in Camargo. The census recorded that he was the head of a household, and español. His household had 8 people, and they did not receive government aid to move to the colony. In 1782, he lived in San Juan Bautista del Cojo in household number 129. The church census recorded that he was married, español, and 65 years old. His household included 5 people. He died on 1 Dec 1793. He was 76 years old.
He married Maria de Jesus Guajardo, daughter of Jose Martinez Guajardo de la Garza and Margarita Gertrudis Gutierrez de Castro. His wife died on 11 Jan 1806. She was 79 years old.
Jose Antonio Olivares, born 1741. He married Maria Catarina Peña. He owned land in Porción 17, Mier.
Juan Javier Olivares, born 1741. He married Maria Antonia Garza (Garcia).
Francisco Olivares, born 1741. He married Francisca Garcia (Perez), daughter of Jose Teodoro Perez and Maria Rita Garcia on 2 Mar 1772 in Mier.
Santiago Olivares, born 1742. He married Maria Juliana Flores, daughter of Diego Flores and Maria Luisa Hinojosa. He owned land in Porción 18, Mier.
Ana Maria Olivares, born 1743. She married Jose Elias Rodriguez.
Maria Rosalia Olivares, born 1752. She married Juan Eligio Casas, son of Juan de las Casas and Josefa de la Garza. He owned land in Porción 39, Camargo.
Juan Jose Olivares, born 1756.
Margarita Olivares, born 1759. She married Alejandro Casas.
Juana Maria Olivares, born 1775.
In 1767, as a resident of Camargo transferred to Mier, he was granted Mier 19 by the King of Spain. There was an improved estancia at the site.