Ryan Radice’s project, Pack up Your Troubles in Your Old Kit Bag: Medicine on Ellis Island During the First World War, was completed for Dr. Adunkule’s Research Seminar in History (HS461-50). Resources used in the project included books, articles, government reports, newspapers, and diaries, as well as digital collections of the U.S. National Library of Medicine, histories of the Red Cross, and the Bob Hope Memorial Library at Ellis Island. Abstract: The hospital facilities on Ellis Island, run by the Public Health Service to treat immigrant patients, were a medical marvel of their time. During the First World War, Ellis Island would find itself the victim of German terrorism, a mobilization point for thousands of Red Cross nurses bound for the frontlines, and a debarkation hospital that was the first stop home for countless sick and wounded soldiers returning from the battlefield. This paper examines how the PHS, the Red Cross, and the Army Medical Corps tried to protect public health, screen immigrants for disease, and care for our military casualties, all under the tension and strain of a world war.