Around 1900, he organized the Buena Vista hockey team which played on an open-air rink at Laurier Avenue and Bronson, with an old streetcar for dressing facilities.

[1] Thomas Franklin Ahearn served in World War I, as a captain in the Canadian Expeditionary Force, from 1914 until 1916, when he was injured and returned home.

[citation needed] At the time of the dissolution of the NHL franchise, Ahearn was a minority owner of the consortium which owned the Ottawa Auditorium arena and the Senators.

He also had his own firm, Rowatt-Ahearn Ltd. and became president of the Ottawa Electric Railway Company in 1938 after his father died.

[4] He was survived by his wife Norah, son Thomas Trevor, and daughters Joan and Lilias.