After its incorporation, Walpole had a role in the events leading up to the American Revolutionary War. The citizens agreed that the taxes imposed by the British government were unfair. They sent a representative, Joshua Clapp, to the state meetings at Faneuil Hall in Boston. These meetings were to discuss how Massachusetts was going to keep its residents safe and peaceful during the events of the American Revolutionary War. In 1775, Walpole sent 157 men to the Battle of Lexington and Concord. These men were led by Captain Seth Bullard. In December 1777, a British fleet of ships came into Narragansett Bay and anchored in Newport Harbor in Rhode Island. Walpole sent two groups of minutemen, consisting of 65 men in total, to help with the situation. These men were led by Joshua Clapp, and Oliver Clapp. They stayed in Rhode Island to defend the port for three weeks.