The Canucks won the Abbott Cup in 1945 and 1947, making them the Junior "A" Champion for Western Canada and earning a playoff against the George Richardson Memorial Trophy- winning Eastern Champion for the Memorial Cup.

The Canucks lost their Memorial Cup competition against the Toronto St. Michael's Majors in both years.

In the WCJHL's inaugural season, the Canucks won the playoff championships despite finishing 4th in the overall standings.

Concerned about the WCJHL's poor reputation with the CAHA and hoping to once again compete for the Memorial Cup, the Canucks, along with the Regina Pats and Weyburn Red Wings, would leave the WCJHL to return to the reborn SJHL.

Following the reorganization of junior hockey in 1970, which saw the Western Canada Hockey League gain Tier-I status, and the SJHL being deemed Tier-II (not Memorial Cup eligible), the Canucks attempted to rejoin the WCHL but were denied.