Long ago dubbed the "Paradise of America," Northampton, Massachusetts, is also known as the home of visionaries--from the Reverend Jonathan Edwards, father of the First Great Awakening, to George W. Benson, brother-in-law of William Lloyd Garrison and a founder of the utopian Northampton Association for Education and Industry. During the mid-nineteenth century the town became a center of political abolitionism and a hub in the Underground Railroad...