Aidan taught in Manchester, Liverpool, Toronto and Mississauga and is now retired. He served as a trustee on the Metropolitan Toronto Separate School Board in the 1970s.
He has written the following books: Glencolumbkille, 3000 BC – 1885 AD; Donegal Poitin – A History; Glencolumbkille, 3000 BC – 1901 AD; and Between the Runways, a History of early Irish-Catholic Settlement in Southern Peel County and Etobicoke.
Aidan lives in Toronto with his wife, Christine.