When Antonio Sandoval was born on 22 October 1872, in Texas, United States, his father, Monico Sandoval, was 32 and his mother, Maria Micaela Trevino, was 32. He married Jesusa Ramirez about 1889, in Texas, United States. They were the parents of at least 10 sons and 1 daughter. He lived in Justice Precinct 1, Webb, Texas, United States in 1940. He died on 15 October 1956, in Laredo, Webb, Texas, United States, at the age of 83, and was buried in Laredo, Webb, Texas, United States.