 Fiacc resided with his maternal grandparents who had recently moved to the Markets area of South Belfast after being burned out of their home in Lisburn in which all their furniture was burned by anti-Catholic rioters.His family emigrated to the United States in the late 1920s and he grew up in New York City.He returned to Belfast in 1946 where he lived for four years before returning to New York in 1950; he grew up in Hell's Kitchen.