counter-attack. Later sporting career In May 1941, Duncan was concerned that the CAHA was dealing with the "commercial consideration" of the game, rather than the welfare of its branches. He also stated the ODHA was considering a merger with the QAHA and the Maritime Amateur Hockey Association (MAHA) into the Eastern Canada Amateur Hockey Association and cited disagreements that eastern and western delegates had on national playoffs. Duncan was involved in organizing sports in Ottawa to contribute to the war effort. He was part of a delegation to confer with James Ralston, the Minister of National Defence of Canada to determine the role of the Interprovincial Rugby Football Union which Duncan represented. He wanted to promote hockey for the military servicemen stationed in the Ottawa area and organized the National Defence Hockey League, with its teams eligible for the Allan Cup playoffs. He recommended to the CAHA to guarantee non-military teams a place in the Allan Cup playoffs, despite the competition being dominated by the Royal Canadian Air Force and Canadian Army teams. Duncan served as manager for the Ottawa Tigers senior team in the Ontario Rugby Football Union from 1945 to 1946. During the same time, he also served as vice-president of Quebec Rugby Union, secretary of Ottawa Junior Football League, and secretary of the Eastern Ontario Baseball Association. Duncan attended the LIHG congress during the 1947 Ice Hockey World Championships, where the CAHA asked for recognition of its newest definition of amateur as anyone who was not actively engaged in a professional sport and the proposed merger of the International Ice Hockey Association with the LIHG. At the 1947 general meeting of the CAHA, Duncan was opposed to the increasing commercialization of junior ice hockey and direct sponsorship of teams by the NHL. After the CAHA implemented contracts for junior and senior players, he felt it was recognition of the unofficial semi-professionalism of the CAHA. Duncan proposed a major series for senior ice hockey in 1948, since he was concerned that certain teams would continue to dominate Allan Cup competition. He submitted a resolution at the general meeting in 1949, for the CAHA to consider the Quebec Senior Hockey League a professional league affiliated with the NHL. He stated that due to the number of times the league had threatened to withdraw from the CAHA and become professional, it would be better for hockey in the region. He