Addison's diaries were originally dictated to his Secretary, Madge White, and pencilled annotations were added when the diaries were published as Four and a half years (London, 1934). See papers relating to Addison’s publications, 1914-39, for other drafts of the diaries, in particular MSS. Addison dep. c. 223, and d. 12. The loose leaf files also contain inserted papers, including some concerning the Board of Education, Ministry of Munitions, Ministry of Reconstruction, Local Government Board, and Ministry of Health. Of particular note are correspondence from Douglas Haig (MS. Addison dep. d. 3, fols. 156, 210b), and Lloyd George (MSS. Addison dep. c. 3, fols. 441-442; c. 4, fols. 245, 248); with correspondence concerning constituency affairs in London, 1918 (MS. Addison dep. c. 3, fols. 310-345) and press cuttings on the National Council of the Pottery Industry, June 1918 (MS. Addison dep. c. 3, fols. 38-80). There are also rough diary notes relating to the period of Addison's resignation from the Government, Apr.-July 1921 (MS. Addison dep. c. 4, fols. 328-364). MSS. Addison dep. c. 5-6 are diaries of Isobel Addison, and give a good insight into family life.