Incorporated in 1847 on the banks of the Merrimack River, Lawrence, Massachusetts, was the final and most ambitious of New Englands planned textile-manufacturing cities developed by the Boston-area entrepreneurs who helped launch the American Industrial Revolution. With a dam and canal system to generate power, by 1912 Lawrence led the world in the production of worsted wool cloth. The Pacific Cotton Mills alone had sales of nearly $10 million and had mechanical equipment capable of producing 800 miles of finished textile fabrics every working day. However, industrial growth was accompanied...