Jose Maria Ventura was born circa 1774, the son of Matias Ventura (Alvarez) and Maria Zapopa Gonzalez.
In 1782, he lived at Santa Gertrudis. The church census recorded that he was a child, casta, and 8 years old. His household included 7 people:
Mathias Ventura (Alvarez), casta, married.
Maria Zapopa Gonzalez, espaƱola, married.
Jose Rafael Ventura casta.
Jose Antonio Ventura, casta, a child, age 10.
Jose Maria Ventura, casta, a child, age 8.
Pedro Ventura, casta, a young child, age 6.
Maria Concepcion Ventura, india, a young child, age 1.