General political and personal correspondence, 1911-1941, (fols. 1-131) correspondence, 1911-1936, including (fols. 2-4) Addison family, (fols. 5-7) Parliamentary Committee of the Co-operative Congress, 1934, and (fols. 96-97) Susan Addison (Addison's mother), 1911, with (fols. 38-45) correspondence with Rupert Howorth of the Cabinet Office, Lloyd George, and Churchill concerning the deposit of Cabinet Papers, 1934-1935; (fols. 132-202) correspondence, 1938-1939, including discussion of Labour Party agriculture policy and national parks; (fols. 233-302) 'Personal letters to see, 1939-40', including (fols. 291-298) birthday greetings for Addison's seventieth birthday, June 1939, and (fols. 299-302) curriculum vitae for his son Christopher Addison, and (fols. 303-447) 'Correspondence 1940-1', personal and political correspondence including (fols. 304-327) discussion of land at Hampden, 1938-1939, (fols. 329-331) Buckinghamshire War Agricultural Executive Committee, (fols. 403-18) possible German activity in Devon, 1940, (fols. 434-435) the National Milk Publicity Council, 1940, and (fols. 438-446) Professional Nurses and Midwives Conference, 1940.