Jose Tomas Garcia was born circa 1759, the son of Juan Jose Garcia and Maria Josefa Salinas.
He married Maria Gertrudis Ochoa.
In 1782, he lived in Mier. The church census recorded that he was single, español, and 23 years old. His household included 9 people:
Juan Jose Garcia, español, married, age 53.
Maria Ana Josefa Salinas, española, married, age 46.
Jose Tomas Garcia, español, single, age 23.
Pedro Jose Garcia, español, single, age 21.
Jose Maria Garcia, español, a youth, age 19.
Jose Rafael Garcia, español, a child, age 10.
Jose Antonio Garcia, español, a young child, age 9.
Maria Guadalupe Garcia, india, single, age 20.
Maria Estefania Garcia, india, a young child, age 4.