He was born circa 1780. His father was Cayetano Dominguez, and his mother was Tomasa Perez.
He married Juana Acosta, daughter of Domingo Acosta and Juana Padilla on 4 Feb 1801 in Bexar. He was 21 years old, and the bride was 16 years old.
soldier of Bexar presidio (marriage investigation, 1800)