Raised among the Sioux until the age of 15, Charles Alexander Eastman (1858-1939) resolved to become a physician in order to be of the greatest service to his people. Upon completing his education at Boston University School of Medicine, he accepted an appointment to a South Dakota Indian reservation, where he was the only doctor available to the victims of the 1890 massacre at Wounded Knee. With the encouragement of his wife, he further distinguished...