When Kenneth Walker Cluff was born on 2 February 1918, in Duchesne, Duchesne, Utah, United States, his father, George Paul Cluff, was 28 and his mother, Nellie May Powell, was 25. He married Gertrude Bigelow on 21 January 1946, in Maricopa, Pinal, Arizona, United States. They were the parents of at least 1 son. He lived in Salt Lake City, Salt Lake, Utah, United States in 1930 and Salt Lake City Ward 1, Salt Lake City, Salt Lake, Utah, United States in 1940. He registered for military service in 1942. He died on 3 June 2008, in Payson, Utah, Utah, United States, at the age of 90, and was buried in Payson, Utah, Utah, United States.