Kammala wannan jumla: Duncan ya halarci taron LIHG a lokacin
1947 Ice Hockey World Championships, inda CAHA ta nemi amincewa da sabon ma'anar mai sonta a matsayin duk wanda ba ya tsunduma cikin wasanni masu sana'a da kuma shawarar hadewar kungiyar Ice Hockey ta Duniya da LIHG. A babban taron 1947 na CAHA, Duncan ya yi adawa da karuwar kasuwancin hockey na kankara na matasa da kuma tallafawa kai tsaye na kungiyoyi ta NHL. Bayan da CAHA ta aiwatar da kwangila ga matasa da manyan 'yan wasa, ya ji cewa hakan ya zama sanannun ƙwararrun ƙwararrun ƙwararrun CAHA.