Addison's papers give a wide insight into the work and private life of Christopher Addison, from celebrated anatomist, to Minister of Munitions during the 1914-18 War, to first Minister of Health. They show the change of political direction from Liberal MP to Labour MP and Peer, including evidence of the close relationships which Addison developed both with David Lloyd George and Clement Attlee. The papers include the following:
- Diaries, 1914-21
- National insurance and early medical papers, 1832-1933
- Board of Education (Aug. 1914-May 1915), 1910-22
- Ministry of Munitions (May 1915-July 1917), 1899-1935
- Ministry of Reconstruction (July 1917-Jan. 1919), 1915-38
- Local Government Board (Jan.-June 1919), 1917-20
- Ministry of Health (June 1919-Apr. 1921), 1890-1951
- Minister without Portfolio (Apr.-July 1921), 1921-8
- Ministry of Agriculture and Fisheries (1929-31), 1905-51
- House of Lords (May 1937-Dec. 1951), 1918-51
- Party and Constituency Papers, 1910-48
- Miscellaneous political and personal correspondence, 1906-51
- Speeches, 1916-33
- Papers relating to Addison's publications, 1914-39
- Press cuttings, 1909-50
- Photographs and original cartoons, 1880-1948
- Personal and family papers, 1883-1980
- Papers, mainly of Dorothy, Lady Addison, relating to Christopher Addison, 1895-1960