Pedro de la Garza was the son of Pedro de la Garza and Juana Flores.
He requested a dispensation to marry Guadalupe Ximenez in 1725. Dispensation source: Guerra et al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.241.
He requested a dispensation to marry Lusia Garcia in 1727. Dispensation source: Guerra et al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.291.