Two days after Christmas in 1738, a British merchant ship traveling from Rotterdam to Philadelphia grounded in a blizzard on the northern tip of Block Island, twelve miles off the Rhode Island coast. The ship carried emigrants from the Palatinate and its neighboring territories in what is now southwest Germany. The 105 passengers and crew on board--sick, frozen, and starving--were all that remained of the 340 men, women, and children who had left their homeland the previous spring. They now found themselves castaways, on the verge of death, and at the mercy of a community of strangers whose...