He was born circa 1773. His father was Jose Miguel Ramirez, and his mother was Maria Tadea Peña. His father owned Mier 50 grant.
In 1782, he lived in Mier in household number 67. The church census recorded that he was a child, español, and 9 years old. His household included 5 people:
Don Jose Miguel Ramirez, married, español, age 57.
Maria Tadea Peña, married, española, age 51.
Jose Simon Ramirez Peña, a youth, español, age 16.
Juan Jose Ramirez Peña, a child, español, age 9.
Maria Rosalia Ramirez, an unmarried girl, india, age 15.