Bernard Bailyn (born 1922) is a preeminent historian who taught at Harvard University from the 1960s until the 1990s actively, although he retains emeritus status since 1993. His specialties include colonial history and the history of Atlantic seaboard. He has won the Pulitzer Prize TWICE, once in 1968 for The Ideological Origins of the American Revolution (which also won the Bancroft Prize) and in 1987, for Voyagers to the West: A Passage in the Peopling of America on the Eve of the Revolution. He also won the National Book Award for The Ordeal of Thomas Hutchinson in 1975. He taught notable historian Gordon S. Wood, among others.
Dr. Bailyn is briefly discussed on p. 66 as well as on p. 170, and has a work mentioned in the bibliography for chapter 5 on p. 108.
Here is a link to a discussion of Dr. Bailyn’s impact on the study of early American history, especially concerning the Revolutionary era: http://www.neh.gov/news/humanities/1998-03/rakove.html