Prince of Wales Trophy in 1925–26 and 1926–27, (along with the O'Brien Cup) before that team would go on to face the Western Hockey League (WHL) champion for the Stanley Cup at the end of those seasons. From 1927-28 season on, the trophy was awarded to the champion of the American Division of the NHL, while the O'Brien Cup was presented to the Canadian Division champion, until 1938, when, after the NHL reverted to a single division, the Wales Trophy was made the award for the overall regular season champion. With the expansion of the NHL in 1967, and the creation of the West
Jim Mahon Memorial Trophy C League championship. Mahon moved up to the Peterborough Petes for the 1969–70 season, scoring 28 goals, 20 assists, and 48 points as a rookie in 46 games. In the 1970–71 season, he scored 45 goals, 44 assists, and 89 points in 62 games. In the summer of 1971, Mahon died in an electrical accident at his grandfather's home in Maidstone. Mahon would have been eligible for the 1972 NHL Amateur Draft. List of winners of the Jim Mahon Memorial Trophy. Jim Mahon Memorial Trophy The Jim Mahon Memorial Trophy is awarded annually by the Ontario Hockey League since 1972,