In 1943, two Hollywood movies were made about the heroic nurses of the Philippines, “Cry ‘Havoc’ ” and “So Proudly We Hail,” but the real-life Angels of Bataan and Corregidor were almost forgotten after they were interned. The letters they wrote to their families in America never arrived and were found after the war in a Manila warehouse. Mrs. Manning later said that the prison camp had no showers, beds or kitchens. A single toilet was used by hundreds of people. Yet somehow she and the nurses persevered. They maintained strict military order among themselves, always wearing their uniforms and...