His father was Pedro de la Garza, and his mother was Juana Flores.
In 1725, he requested a dispensation to marry Guadalupe Ximenez. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.241.
In 1727, he requested a dispensation to marry Lusia Garcia. It was his second marriage. Dispensation source: Guerra, et. al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.291.