The Berlin Union Jacks were a junior team.
During World War I, this Canadian town named after the enemy (German) capital went to some lengths to prove its patriotism. The hockey team was named after the British flag.
The team made it all the way to the finals in the 1914-15 OHA Junior Season and the 1915-16 OHA Junior Season but lost them both.
Frank J. Selke, a native of the city, was a coach of the team.