He was born circa 1771. His father was Joaquin Garcia, and his mother was Rosalia Salinas. His father owned Mier 64 grant, Mier 62 grant, Mier 52 grant.
In 1782, he lived in Mier in household number 26. The church census recorded that he was a child, español, and 11 years old. His household included 6 people:
Joaquin Garcia, married, español, age 55.
Maria Petra Izaguirre, married, española, age 21.
Jose Vicente Garcia, single, español, age 23.
Maria Lugarda Garcia, an unmarried girl, española, age 20.
Marcelino (Mariano) Garcia, a child, español, age 11.
Maria Agustina Garcia, a child, española, age 9.