Complex sentence: The Irish-American Fenians Who Bombed Victorian Britain Merrion Press, 30 Nov.2013 and would remain providing information to Her Majesty's Secret Service for years to come.
Split into simpler sentences: The Irish-American Fenians Who Bombed Victorian Britain Merrion Press, 30 Nov.2013. He would remain providing information to Her Majesty's Secret Service for years to come.