He was born circa 1740. His father was Francisco Lopez de Jaen, and his mother was Maria Agustina Longoria. His father owned Porción 12, Camargo. In 1750, he lived in Camargo. The census recorded that he was the son of a settler, español, and 10 years old. His household had 14 people, including 3 servants, and they received government aid to move to the colony. He owned Porción 14, Camargo.
He married Maria Josefa Vela, daughter of Diego Vela and Maria Rosalia Gonzalez.
Josefa Lopez. She married Nicolas Villarreal, son of Francisco Ignacio Villarreal and Teresa Landa (Vela) in 1792 in Camargo.
Porción 14, Camargo