Jose Gregorio Salinas was born circa 1766, the son of Juan Cristostomo Salinas and Maria Josefa Ramos.
In 1782, he lived in Mier. The church census recorded that he was a youth, español, and 16 years old. His household included 7 people:
Maria Josefa Ramos, española, a widow, age 37.
Jose Gregorio Salinas, español, a youth, age 16.
Maria del Refugio Salinas, española, an unmarried girl, age 14.
Maria Antonia Salinas, española, a child, age 11.
Ysavel Maria Salinas, española, a child, age 9.
Jose Prudencio Salinas, español, a child, age 7.
Maria Teresa Salinas, española, a young child, age 5.