He was born circa 1771. His father was Jose Maria Escobar, and his mother was Antonia Gertrudis Chapa.
In 1782, he lived in Santa Gertrudis / San Jose de la Rinconada in household number 82. The church census recorded that he was a child, español, and 11 years old. His household included 5 people:
Jose Maria Escobar, married, español, age 31.
Antonia Gertrudis Chapa, married, española, age 31.
Pedro Jose Escobar, a child, español, age 11.
Maria del Refugio Escobar, a child, española, age 9.
Jose Domingo Saenz, a youth, español, age 19.