‘The Battle of April 19, 1775’ obviously deals with the fights in Lexington, Concord, Lincoln, Arlington, Cambridge, Somerville and Charlestown, Massachusetts. The book contains one of the most comprehensive accounts of the battle ever printed. The narrative is based on official reports, sworn statements, diaries, letters, accounts given by participants and witnesses, and every other available source.

A chronological narrative of Walden history explains the reasons for Thoreau's decision to build a home in the woods and recounts physical alterations made to Walden in the name of public access and safety.