Papers concerning Addison's early work for the Labour Party, 1923-1926, (fols. 2-118) his joining the Labour Party, Nov.-Dec. 1923, including attendance at meetings in support of Labour Party candidates in the November 1923 Election, with (fols. 60-67) an explanation by Addison as to why he left the Liberal Party; (fols. 119-227) his standing as a Labour candidate for South Hammersmith in the 1924 Election, including correspondence with Swindon Labour Party, and memoranda by George Hicks, Amalgamated Union of Building Trade Workers, on housing problems, and (fols. 228-289) his campaigning on behalf of the Labour Party in the West Country, 1924-1926, including discussion of possible seats.