Blue Ensign
In 1937, the Canadian Government established that the Canadian Blue Ensign ("the Blue Ensign of the Dominion of Canada") would be used as a special ensign by the several Canadian yacht clubs which had prior to then used the British Blue Ensign (either plain or defaced) as their special ensign. This usage lasted until the 1965 introduction of the Maple Leaf flag. Today, some Canadian yacht clubs use the Canadian Blue Ensign to commemorate this usage.