He was born circa 1725. His father was Miguel de Gortari, and his mother was Josefa de Aguirrea y Bizarron.
He married Maria Apolonia Travieso, daughter of Vicente Alvarez Travieso and Maria Ana Curbelo in 1763 in San Fernando de Bexar. He was 38 years old.
Jose Alejandro de Gortari, baptized 20 Mar 1768 in San Fernando de Bexar. He married Maria Antonia Granado, daughter of Juan de Acuña Granado and Maria Isabel Castro on 4 Feb 1793 in San Fernando de Bexar.
He died circa 1796. He was 71 years old.