He was born circa 1712. His father was Gov. Gen Blas de la Garza Falcon, and his mother was Beatriz de Villarreal. In 1750, he lived in Camargo. The census recorded that he was the head of a household, a captain. His household had 21 people, including 16 servants, and they did not receive government aid to move to the colony. In 1750, he lived in Revilla in household number 37. His household included 1 person. He died in 1767. He was 55 years old. Capt. of Camargo
He married Maria Catarina Gomez de Castro, daughter of Antonio Gomez de Castro and Maria Nicolasa Treviño.
He married Josefa de los Santos Coy, daughter of Nicolas de los Santos Coy and Ana Maria Guerra. It was his second marriage. She owned land in Porción 60, Camargo. Her mother owned land in Porción 59, Camargo.
Maria Gertrudis de la Garza Falcon, born 1734. She married Salvador de la Garza, son of Jose Adriano de la Garza and Maria de Elizondo. He owned land in Espiritu Santo grant, Cameron County, Porción 89, Camargo, Porción 95, Camargo.
Jose Antonio de la Garza Falcon, born 1738. He married Leonor Mendez. He owned land in Porción 80, Camargo.
Juan Jose de la Garza Falcon, born 1740. He married Candida Francisca Guerra, daughter of Francisco Guerra and Ana Josefa de la Garza. He owned land in Porción 81, Camargo.