""Open Air Crusaders: A Story of the Elizabeth McCormick Open Air School"" is a book written by Elizabeth McCormick. It tells the story of the Open Air School, which was founded by McCormick in 1907 in Chicago. The school was established to provide education and health care to underprivileged children who were suffering from tuberculosis, a disease that was prevalent at the time. The book describes the challenges that McCormick faced in setting up...