Of all the aboriginal tribes of the Americas none had a more courageous or tragic destiny than the twin tribes of the Mississippi Valley, the Sacs and the Foxes. Occupying a parkland area midway between the powerful Iroquois and Sioux tribes in present Illinois and Wisconsin, the Sacs and the Foxes were prosperous agrarian people who held their own against their more numerous neighbors. The white frontier moved threateningly closer, and...