Jose Antonio Bazan was born circa 1747, the son of Jose Bazan and Ana Maria Salinas.
He married Maria Antonia Margarita Vela in 1770 in Mier.
In 1782, he lived in Mier. The church census recorded that he was married, casta. His household included 5 people:
Jose Antonio Bazan, casta, married.
Maria Antonia Margarita Vela, española, married.
Jose Novento Bazan, español, married.
Maria Tomasa Bazan, española, a child.
Jose Angel Bazan, español, a young child.