He was born circa 1786, and was baptized 27 Mar 1786. His father was Juan Francisco Saenz, and his mother was Maria Teresa Peña. His father owned Mier 7 grant.
In 1782, he lived in San Pedro de las Flores in household number 74. The church census recorded that he was a youth, español, and 18 years old. His household included 9 people:
Juan Francisco Saenz, married, español, age 53.
Maria Teresa Peña, married, española, age 49.
Jose Felipe Saenz, a youth, español, age 19.
Jose Gabriel Saenz, a youth, español, age 18.
Juan Francisco Saenz, a child, español, age 14.
Maria Gertrudis Saenz, a child, española, age 11.
Maria Josefa Saenz, a child, española, age 9.
Jose Antonio Saenz, a child, español, age 7.
Jose Francisco Saenz, a young child, español, age 3.