Her father was Pedro de la Garza, and her mother was Juana Flores.
She married Joseph Martinez .
Lucrecia Martinez de la Garza, born 1715. In 1733, she requested a dispensation to marry Onofre de Alderete y Guerrero in Monclova. They were married on 1 Feb 1734 in Monclova. Her husband died on 11 Nov 1754 in San Fernando de Bexar. He was 44 years old.