Cliffside Hockey Team / Ottawa Cliffsides - Allan Cup Champions 1909
I.A.H.U. Team Champions.

Cliffside Hockey Club of the Ottawa Amateur Athletic Association.

Team Roster
Stewart Christie, Charlie McKinley, Billy Stewart, Norman Henry, Horace Merrill, Hall, Williams, Dion, Powell

The Interprovincial Amateur Hockey Union (IAHU) began play in January 1909 with a four-team league of the Montreal Victorias, Montreal Hockey Club, Ottawa Cliffsides and Toronto AAC. The new championship trophy for Canadian amateur teams was donated by Sir Montagu Allan, and the Ottawa Cliffsides were the first IAHU champions.

The Cliffsides defeated the Montreal Amateur Athletic Association / Montreal Hockey Club 9 goals to 7 to win the 1st Championship for the Allan Cup

The Cliffsides played for only three seasons in the Interprovincial Amateur Hockey Union League.

NOTE
The first Allan Cup was simply presented to the Ottawa
Cliffsides as champion of the league they were in (the Interprovincial
League), much in the same way the first Stanley Cup was awarded to the
Montreal AAA.
In the early days, the Allan Cup was a challenge cup, just as the Stanley Cup
was, so it appears there was often more than one championship series in a
year.

March 8, 1909 Article Montreal Gazette - Cliffsides clinch Interprovincial title
http://news.google.ca/newspapers?id=As80AAAAIBAJ&sjid=84QFAAAAIBAJ&pg=7094,622692&dq=hockey+allan-cup&hl=en