Broadcaster. Dennett began his career at the age of 15 while still going to school. His first job was at CFAC Calgary in Calgary, Alberta, where he worked at filing records and other odd jobs. At the age of 16 Dennett became an announcer at the station when he had a chance to fill in for the regular announcer when he never showed up for work. In 1935, Dennett began doing hockey interviews. In 1940 he enlisted in the Armed Forces for five months before he was discharged due to stomach ulcers. After his discharge from the Armed Forces Dennett began working at CKRC Winnipeg in Winnipeg, Manitoba, the newest member of the All-Canada Mutually Operated Stations Group. In 1943 he moved to Toronto, Ontario, and became a newscaster at CFRB Toronto, where he later took over the stations full time slots from Jim Armstrong in 1949. In 1945 he become a member of the Hot Stove League which was incorporated in the Saturday Night Imperial Esso Hockey broadcasts on the coast-to-coast radio network. The group then included CFRB sportscaster Wes McKnight, Bobby Hewitson, Elmer Ferguson and Court Benson. In 1952 Dennett became a major fixture for the next ten years as part of both the radio and TV hockey broadcasts, and from 1962 he continued his National Hockey League broadcasting with just television. Dennett continued his broadcasting career until he was diagnosed with cancer in 1975. In January 1975 he was operated on for the cancer and went back to work soon after until a month before his death. Dennett died on August 27, 1975, from the cancer at the age of 49. In August 1975 Dennett was inducted into Canada's Sport Hall of Fame. In his 26 years as a broadcaster Dennett had become Canada's most-listened-to radio newscaster, with surveys giving him more than 350,000 listeners at 8:00 am and 165,000 at 6:30 pm. He had written, edited and read newscasts at most of those times.