In 1762, the northeastern bank of Biddeford separated as the District of Pepperrellborough, named for Sir William Pepperrell, hero of the Battle of Louisburg and late proprietor of the town. Amos Chase was one of the pioneers of Pepperrellborough. He was chosen as a selectman at the first town meeting, and served as the first deacon of the Congregational Church. Dea. Chase was one of the area's largest taxpayers, and was prominent in civic affairs during the American Revolution, serving on the town's Committee of Correspondence and Committee of Inspection.