1 Alfred M. Sadler, Jr., is retired from the practice of primary and urgent care in Monterey and Salinas, Calif. He is the coauthor of The Physician Assistant: an Illustrated History, which chronicles the development of the profession over the past 50 years, and is immediate past president of the Physician Assistant History Society. He served as the first president of the Association of Physician Assistant Programs (the forerunner to the Physician Assistant Education Association) in 1972.