His father was Juan Perez de la Garza, and his mother was Maria Cantu.
In 1730, he requested a dispensation to marry Maria Guadalupe de la Garza. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.89.
Maria Josefa de la Garza. In 1746, she requested a dispensation to marry Joseph Francisco Treviño.