Areas of Research/Interest: 
19th and 20th Century Irish, English, European, and Irish American history and politics; Nationalism, imperialism, and post colonialism; Irish Diaspora; Historiography

Select Publications:
Ireland 1912-1985 Politics & Society (Cambridge, 1989)

The Modernisation of Irish Society, 1848-1928 (Dublin, 1973)

"The Shifting Balance of Power: Exploring the 20th Century," Sunday Tribune, 2000

Making the Irish American, Editor, with Marion R. Casey, New York University Press, 2006