Maria Antonia Perez was baptized on 4 Mar 1781, the daughter of Francisco Javier Perez and Maria Josefa Rios.
In 1782, she lived at Guardado. The church census recorded that she was a young child, casta, and 1 years old. Her household included 9 people:
Francisco Javier Perez, casta, married, age 41.
Maria Josefa de los Rios, espaƱola, married, age 41.
Jose Ignacio Perez, casta, a youth, age 15.
Maria del Carmen Perez, casta, an unmarried girl, age 13.
Maria Rita Perez, casta, a child, age 11.
Jose Antonio Perez, casta, a child, age 9.
Jose Alvino Perez, casta, a young child, age 6.
Maria Antonia Perez, casta, a young child, age 1.
Maria Josefa Perez, india, a young child, age 3.