His father was Manuel Sandoval, and his mother was Maria Petra Garcia. His father owned Porción 16, Mier.
He married Maria Rita Ramirez, daughter of Jose Antonio Ramirez and Catarina Vela on 1 Feb 1780 in Mier. the bride was 13 years old. Her father owned Porción 67, Mier, Starr County.
He married Maria Ignacia Saenz in 1785 in Mier. It was his second marriage.
Ursula Sandoval. She married Jose Maria Ramirez, son of Jose de los Santos Ramirez and Maria Guadalupe Guerra.
Jose Manuel Sandoval. He married Maria Teodora Ramirez, daughter of Marcelo Ramirez and Maria Gertrudis Garcia.