The MacArthur Memorial Library contains General MacArthur's original collection of 5,000 volumes augmented by gifts and purchases of books concerning the General, his times, and his associates. The archives proper hold documents, photographs, motion picture films, sound recordings, newspapers, rare books, scrapbooks, and microfilms.
General MacArthur's correspondence and papers are both personal and official; they include not only his private correspondence but also his headquarters official files of letters, reports, photographs, messages, memoranda, and orders. Except for a few scattered items, the General's papers date from the summer of 1941 to his death.
Of particular interest to researchers have been the documents on the General's tenure as Philippine Military Advisor; the unique materials on the first months of the war in the Philippines, 1941-1942; WWII; the occupation and rehabilitation of Japan; the Korean War; the message files of 1941-1951; the photographic collection; and the General's private correspondence. Certain papers of Major General Whitney, Major General Willoughby, and Lieutenant General Sutherland are also available.
Source: From the MacArthur Memorial Library website.