Box 17

Scope and Content Note From the Collection: The collection consists of fifty-one boxes of published and unpublished research source material, as well as a small collection of personal papers.Series I, published material, contains a variety of research materials collected by Layton. It is divided into four subseries. Select volumes of Senshi Sosho, the official Japanese History of World War II, along with portions that were photocopied and hand bound by Layton form the first subseries. This material is in Japanese. Books, including works on naval intelligence, Japanese ship lists, both in English and Japanese, comprise subseries II. Subseries III contains copies of journal and magazine articles, book reviews and chapters of books on intelligence and military topics for the World War II period, as well as portions of a U.S. Naval Institute Oral History with Captain Joseph Rochefort. Strategic area planning maps of the Pacific Ocean are in subseries IV.Series II, unpublished material, contains, for the most part, documents that can also be found in the records of the National Security Agency located in the National Archives. Subseries I contains histories (SRH) treating aspects of radio intelligence in the war; memoranda of the Joint Army-Navy Assessment Committee, as well as minutes of Committee meetings; OP-20 reports on Japanese Grand Maneuvers; Japanese reports on allied communications; a Naval Security Group history and the War Diary of the Combat Intelligence...