The Fort William Beavers would be the last area team, pre-merger, to be a finalist for the Allan Cup when they were the runner-up in 1955.

[4] The Twins defeated the first-place Green Bay Bobcats two games to none in a best-of-three series in the first round of the playoffs.

[5] The Twins won the final round of the playoffs with three consecutive wins versus Waterloo Black Hawks in a best-of-five series for the USHL championship.

[7] In the Western Canada finals, the Twins won the best-of-five series with three consecutive victories versus the Spokane Flyers.

[8] In a best-of-seven series for the national championship, Siciliano and the Twins won the Allan Cup by defeating the defending champion Barrie Flyers four games to two.

[7] The Twins then withdrew from the USHL due to travel costs and schedule commitments to represent Canada on a European tour in the 1975–76 season.

They played host to the Cambridge Hornets at the Fort Williams Gardens in a best-of-seven series.

The 1987–88 season had the Twins win the Manitoba and Western titles and find themselves in the Allan Cup final again.

After losing the league championship to the St. Boniface Mohawks, the Twins hosted the Allan Cup round robin with three other teams.

In the final game of the round robin, the Twins met the Bassano Hawks and defeated soundly 7–1 to clinch second place.

Thunder Bay found themselves in a sudden death semi-final against Montreal for the right to play in the final.

After winning the 1990-91 Manitoba title and the Western Canadian championship, the Twins found themselves yet again in the Allan Cup final.

The Islanders won four straight games (5-3, 5–2, 5–4, and 5–4 in overtime) to kill the Twins dream of a sixth Allan Cup.

That summer, the Colonial Hockey League announced plans to expand to the city of Thunder Bay.

The 1974-75 Thunder Bay Twins were inducted into the Northwestern Ontario Sports Hall of Fame in 1987.