Clifford Kimble was born on February 15, 1926, in Big Horn, WY to Glenn E and Mary Connolly Kimble, the fourth of six children. His family homesteaded west of Clearmont, WY and he attended school in Clearmont. He was married to Jean Hawkey Kimble on May 15, 1944, and left for WWII service on May 19, 1944, in the Army Air Corps. He was discharged as a Sergeant on May 14, 1946.