Henry Alan Jefferies was born in Cork, Ireland, in 1961. He graduated from the National University of Ireland (UCC) in 1982 with a 1st class honours BA. He holds a MSc from the University of Ulster and a PhD from the Queen's University, Belfast. He has written books on Irish Church history, and the history of Cork, edited volumes on Church history, and written many articles on Irish Church history. His most important book was focused on THE IRISH CHURCH AND THE TUDOR REFORMATIONS (2010). His teaching career included years as a demonstrator and assistant lecturer at UCC and the University of Ulster, and post-primary teaching in Ireland and England. He is currently the Head of History at Thornhill College, Derry.