After school (Purley Grammar School) and national service (R.A.F.), I came to Cambridge in 1959 to read History at Christ's College. After graduating in 1962, I began research in American history and was a Harkness Fellow in the United States, 1963-65. I taught at University College London, 1966-71, and became a Fellow of St Catharine's when I was appointed to the Cambridge History Faculty in 1971. I have been here ever since apart from periods of leave, during which I have had Fellowships at the Woodrow Wilson Center in Washington, D.C. (1975-76) and the National Humanities Centre in North Carolina (1993-94). I married my wife, Dorothy, a historian of the ancient world and a Fellow of Girton College, in 1982. We have no children.
- A Sense of Power: The Roots of America's Global Role (Cornell University Press, 2015)
- Woodrow Wilson (Longman, 2002)
- "The Appeal of America First" in Robert Jervis, Francis J. Gavin, Joshua Rovner & Diane Labrosse (eds.), Chaos in the Liberal Order: The Trump Presidency and International Politics in the 21st Century (Columbia University Press, 2018)
- "Wilsonianism: The dynamics of a conflicted concept", International Affairs, January 2010.
- Reformers and War: American Progressive Publicists and the First World War (Cambridge University Press, 1987)