He was born circa 1744. His father was Ramon Francisco Duran, and his mother was Tomasa Antonia Contreras.
He married Maria Gertrudis Garcia, daughter of Juan Jose Garcia and Maria Josefa Salinas on 3 Aug 1773 in Mier. He was 29 years old, and the bride was 16 years old. Her father owned Porción 28, Mier.
Maria de los Santos Duran, born 1774. She married Jose Antonio Treviño, son of Jose Marcelino Treviño and Isabel Maria Treviño on 6 May 1788.
Maria Narcisa Duran, born 1776.
Maria Leocadia Duran, born 1779.
Maria Gertrudis Duran, born 1782.