Joseph de la Garza Falcon was the son of Sgt. Major Juan de la Garza Falcon and Maria Margarita Rodriguez de Montemayor .
He requested a dispensation to marry Nicolasa de la Garza de la Rocha in 1679.
He requested a dispensation to marry Micaela Sanchez de la Barrera in 1714. Dispensation source: Guerra et al., Index to the Marriage Investigations of the Diocese of Guadalajara, p.55.
Gertrudis de la Garza married Joseph Cantu.
Juan Joseph de la Garza married Maria Gonzalez Hidalgo, Ana Guerra, Maria Antonia de la Garza.
Carlos de la Garza married Luisa de Treviño.
Joseph de la Garza married Ana Guerra.
Maria de la Garza married Cristobal de Treviño.
Josepha de la Garza married Juan Nicolas Rodriguez.
Margarita de la Garza married Lucas de Treviño.