Prior to that, from 1905 to 1908, they competed in the Ottawa City Senior League.
Alf Smith coached the Ottawa Cliffsides to win the first Allan Cup in March 1909, only to lose it to Queen's University in a challenge.
The Cliffsides played for only three seasons in the Inter-Provincial league.
They then reappeared in the Ottawa City Senior League in 1919–20 before disappearing for good.
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