When Sanford John Parker was born on 22 February 1853, in Hampton, Franklin, Iowa, United States, his father, John Parker, was 31 and his mother, Hulda H Hanford, was 20. He married Isabelle M Webster on 4 April 1876, in Winnebago, Illinois, United States. They were the parents of at least 1 daughter. He lived in Washington, Franklin, Iowa, United States in 1900 and Long Beach, Los Angeles, California, United States in 1930. He died on 12 March 1941, in Los Angeles, California, United States, at the age of 88, and was buried in Inglewood, Los Angeles, California, United States.