When Cyrus Everett Anderson was born on 1 May 1878, in Platteville, Taylor, Iowa, United States, his father, Cyrus Jack Anderson, was 43 and his mother, Eliza Magee Fulton, was 40. He married Anna DERRICKSON on 20 September 1900, in Denver, Colorado, United States. They were the parents of at least 2 sons and 3 daughters. He lived in Sterling Township, Rice, Kansas, United States in 1920 and Election Precinct 1 Tucumcari, Quay, New Mexico, United States in 1940. He died on 8 November 1949, in Tucumcari, Quay, New Mexico, United States, at the age of 71, and was buried in Tucumcari, Quay, New Mexico, United States.