Plymouth is best known as the Pilgrim landing place, but history did not stop when the dishes were cleared away from the first Thanksgiving. A prosperous fishing village before the War of 1812, Plymouth developed mills and factories to line its modest brooks during the Industrial Revolution, and elegant dwellings were built to replace humble Colonial homes. Steamboats and the railway brought waves of immigrants and summer visitors, transforming the small Yankee village into a bustling town. Later, the mills closed, tourist traffic replaced the clatter of machinery, and massive housing...