His father was Capt. Francisco de la Garza Falcon, and his mother was Juana Garcia Gutierrez.
He married Maria de Treviño, daughter of Baltazar de Treviño and Maria Sosa Saldivar.
Catarina Casilda de la Garza. She married Diego de Aldape.
Nicolasa de la Garza. In 1699, she requested a dispensation to marry Francisco de Villareal. In 1707, she requested a dispensation to marry Gregorio Rodriguez.
Alonso de la Garza. In 1725, he requested a dispensation to marry Maria Gertudis de la Garza.
Miguel de la Garza. In 1727, he requested a dispensation to marry Francisca Gonzalez.
Antonia de la Garza, born 1680. In 1695, she requested a dispensation to marry Antonio Guerra Cañamar. They were married on 18 Jul 1695 in Monterrey.