One of the greatest goaltenders in NHL History, Glenn Hall finished his storied ... a Blue after the 1970-71 season Inducted to the Hockey Hall of Fame on Aug. 28, 1975 NHL Career (18 seasons): ...

The switch to the dropping-to-the-knees "butterfly" began in the 1960's with Black Hawks goalie Glenn Hall who only occasionally went to his knees. But Hall was so successful, he was able to play ...