1959–60 NHL season last campaigns before retirement. This season marked the first season of the Original Six era during which every active player had played for Original Six teams only. Ken Mosdell, the last player to play for another team, retired the previous season. Montreal played the minimum number of games to win the Stanley Cup and in the process, became the last Cup winners in NHL history to go undefeated in the playoffs to date. After winning the Stanley Cup, Maurice Richard retired from the NHL as a champion. Gordie Howe won the Hart Trophy to become the first five-time winner of
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,