His father was Tomas de Olivares, and his mother was Ana Gertrudis Longoria. His father owned Camargo 8 grant, Camargo 34 grant, Camargo 35 grant, Camargo 37 grant.
He requested a dispensation to marry Maria Francisca Treviño due to cosanguinity of 3rd + 4th grade. They were married on 17 Aug 1787 in Camargo. He was a native of Rancho La Bonita (jurisdiction of Camargo) (?), and the bride was 27 years old. The priest recorded his race as español. Her father owned Camargo 97 grant. Marriage source: link.