Thomas Allen presents a history of American Tories during the American Revolution, self-proclaimed Loyalists to the British crown. The author casts the revolution as a civil war that took place amongst the American populace. Topics include the Tory strongholds of New York and Philadelphia, and the migration of 80,000 Tories, most of whom left for Canada. He sheds new light on the Tories, especially using records abroad as well as state archives. Thomas Allen discussed his book at the Library of Congress in Washington, D.C.