He was born circa 1767. His father was Diego Garcia, and his mother was Maria Gertrudis Salinas. His father owned land in La Noria de Santo Domingo grant, Jim Hogg County, Porción 44, Mier. In 1782, he lived in Mier in household number 60. The church census recorded that he was a youth, español, and 15 years old. His household included 8 people. In 1791, he lived in Mier in household number 71. The church census recorded that he was single, español, and 23 years old. His household included 4 people.