He was born circa 1749. His father was Tomas Barrera, and his mother was Maria Guadalupe Garcia. His father owned Mier 38 grant.
He married Maria Juliana Benavides.
Maria Josefa Barrera, born 1767.
Jose Manuel Barrera, born 1774.
Jose Maximo Barrera, born 1778.
Maria Gregoria Barrera, born 1779. She married Jose Rafael Resendez, son of Bartolome Resendez and Maria Ageda Treviño on 1 Dec 1798 in Mier.
He was padrino at the wedding of:
Maria Merced Herrera and Jose Marcelino Bazan, married on 5 May 1784 in Mier. The madrina was Maria Juliana Benavides.
In 1782, he lived in San Igancio de las Auras in household number 115. The church census recorded that he was married, español, and 33 years old. His household included 5 people:
Jose Gregorio Barrera, married, español, age 33.
Maria Juliana Benavides, married, española, age 29.
Maria Josefa Barrera, an unmarried girl, española, age 15.
Jose Manuel Barrera, a child, español, age 8.
Jose Maximo Barrera, a young child, español, age 4.
In 1792, as the son of the original grantee, he was granted Mier 38 by the King of Spain.