- A New World: The History of Immigration to the United States
- Washington, D.C. from the Air (From the Air)
- Irish Century From the Famine
- Political Thought in Ireland 1776-1798: Republicanism, Patriotism, and Radicalism (Oxford Historical Monographs)
- Racialised Barriers: The Black Experience in the United States and England in the 1980s (Critical Studies in Racism and Migration)








