His father was Joseph de la Garza, and his mother was Nicolasa de la Garza.
In 1722, he requested a dispensation to marry Maria Gonzalez Hidalgo. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.231.
He married Ana Guerra. It was his second marriage.
In 1730, he requested a dispensation to marry Maria Antonia de la Garza. It was his third marriage. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.86.