He was born circa 1748. His father was Juan Bautista de la Garza Falcon, and his mother was Petra de la Garza.
He married Maria Victoriana Garcia, daughter of Diego Garcia and Maria Gertrudis Salinas on 11 Feb 1784 in Mier. He was 36 years old. Their padrino was Julian Flores, and their madrina was Maria Teresa Ramirez Peña. Her father owned La Noria de Santo Domingo grant, Jim Hogg County, Mier 44 grant.
Bacilio Garza. He married Cecilia Vela, daughter of Fermin Vela and Juana Contreras.
Maria Pilar de la Garza. She married Jose Antonio Garcia, son of Jose Antonio Garcia and Maria Francisca Bazan.