Medical Recollections Of The Army Of The Potomac (1866) - Paperbackby Jonathan Letterman (Author) Medical Recollections Of The Army Of The Potomac is a historical book written by Jonathan Letterman, a physician who served during the American Civil War. The book provides a detailed account of the medical practices and challenges faced by the Union Army during the war, particularly in the Army of the Potomac. Letterman was responsible for creating a new system of medical care for the Union Army, which included