He was born circa 1768, and was baptized 20 Jul 1768. His father was Santiago Olivares, and his mother was Maria Juliana Flores. His father owned land in Porción 18, Mier. In 1782, he lived in Mier in household number 59. The church census recorded that he was a youth, español, and 14 years old. His household included 5 people. In 1791, he lived in Mier in household number 83. The church census recorded that he was married, español, and 23 years old. His household included 2 people.
He married Maria Guadalupe Garcia, daughter of Cristobal Garcia and Maria Feliciana Peña on 7 Jan 1789 in Cerralvo. He was 21 years old, a native of Mier, a resident of Mier, and the bride was 19 years old, a native of Mier, a resident of Cerralvo. Her father owned land in Porción 76, Camargo. Marriage source: link.