“Clifford Trafzer brings his many years of experience and unique set of knowledge to uncover the understudied role of field nurses from the Progressive Era to the 1950s as they collaborated closely with a multitude of Native Americans in Southern California to promote public health and counter the onslaught of tuberculosis and other Western diseases that afflicted them as a result of being confined to reservations.”—Andrae M. Marak, co-author of At the Border of Empires