When Dennis Henry Anderson was born on 29 August 1913, in Raymond, Warner, Alberta, Canada, his father, Henry Andreasen Anderson, was 22 and his mother, Luinda Gladys Christensen, was 18. He married Donna Mae Jones on 7 August 1937, in Tooele, Utah, United States. They were the parents of at least 2 sons and 1 daughter. He immigrated to Sweet Grass, Montana, United States in 1936 and lived in Alberta, Canada in 1916. He died on 27 October 1961, in Salt Lake City, Salt Lake, Utah, United States, at the age of 48, and was buried in Salt Lake City Cemetery, Salt Lake City, Salt Lake, Utah, United States.