The Manitoba Junior Hockey League (MJHL) expanded from four to six teams for the 1966–67 season when it readmitted the Brandon Wheat Kings and accepted the Selkirk Steelers.
[1] MJHL commissioner Jimmy Dunn announced his resignation on October 24, 1966, and cited personal reasons.
[2] His resignation came shortly after a game between the Winnipeg Rangers and the Brandon Wheat Kings in which 242 penalty minutes were given in the first period.
[3] On April 7 in Flin Flon, the Bombers won the MJHL championship and were presented with the Turnbull Memorial Trophy.
Bobby Clarke (Flin Flon) set league records for most goals (71), assists (112), and points (183), in a single season.