Gregorio de la Garza Guerra was the son of Francisco de la Garza Guerra and Juana Francisca de la Garza Falcon.
In 1820 he purchased Camargo 85 from Ines Vela. The widow of the original grantee sold the tract. Three minor children of Antonio Garza Guerra (brother of buyers) and Juan Bautista Garza Treviño were also included in purchase.