One hundred years ago, the people of Scituate proudly boasted not only of living in the coastal town but also of inhabiting the various villages--among them Greenbush, the West End, North Scituate, the Harbor, Scituate Center, Egypt, and Humarock--that comprised their community. Taming the four cliffs of Scituate, the townsfolk harnessed wind and wave to power their mills, scoured and scraped seafloor rocks to gather valuable moss, and outlasted some...