Chancellorsville and Gettysburg (1882) is a war memoir by Abner Doubleday. From the preface: "In writing this narrative, which relates to the decisive campaign which freed the Northern States from invasion, it may not be out of place to state what facilities I have had for observation in the fulfilment of so important a task. I can only say that I was, to a considerable extent, an actor in the scenes I describe, and knew the principal leaders on both sides, in consequence of my association with them at West Point, and, subsequently, in the regular army. Indeed, several of them, including Stonewall Jackson and A. P. Hill, were, prior to the war, officers in the regiment to which I belonged. As commander of the Defences of Washington in the spring of 1862, I was, owing to the nature of my duties, brought into intimate relations with the statesmen who controlled the Government at the time, and became well acquainted with President Lincoln." Artist Bio Author: Abner Doubleday (1819-1893) was a career United States Army officer and Union general in the American Civil War, fighting from Fort Sumter to Gettysburg.