Game 89 | July 29, 1960
Clarence Campbell, Jack Adams

Campbell served as president of the National Hockey League from 1946-1977. He was a strong voice behind the need to expand the league, which happened in 1967 when the NHL doubled in size and added the Minnesota North Stars. Adams, a hockey Hall of Famer as a player; served as coach or general manager of the Detroit Red Wings for 36 years.

Game 164 | October 30, 1968
A mere eight years after he told Dunkers to be patient for an NHL expansion team, Commissioner Campbell returned to Minnesota to watch the Minnesota North Stars open their 1968 season. He was to serve as NHL commissioner for another nine years before he was succeeded by John Ziegler.

Wikipedia - Clarence Campbell