Jose Martin Saenz was born circa 1769, the son of Marcelino Saenz and Margarita Almaraz.
He married Maria Teresa Olivares on 5 Oct 1784 in Mier.Their padrinos were Juan Angel Saenz and Maria Gertrudis - .
In 1782, he lived at La Bonita/ San Nicolas. The church census recorded that he was a child, español, and 13 years old. His household included 6 people:
Marcelino Saenz, español, married, age 55.
Maria Margarita Almaraz, española, married, age 46.
Juan Jose Saenz, español, a youth, age 16.
Jose Martin Saenz, español, a child, age 13.
Jose Felipe Saenz, español, a child, age 12.
Maria Gertrudis Saenz, española, a young child, age 9.