Papers of Sir Gilbert James Morley Longden. Comprised of general political correspondence and papers; constituency papers; subject files; political writings; collected published material; personal memorabilia, correspondence and papers; autobiographical material; papers about the collection; 1901-1996.

Margaret MacDonald's correspondence, papers and lectures, on subjects including factory and shop legislation, the employment of women, housing, the Licensing Bills of 1901-1902, Sunday School teaching, vagrant children, women's organizations and women's suffrage, and the Franco-British Exhibition at Hammersmith in 1908. James Ramsay MacDonald's papers, correspondence and press cuttings on subjects including the financing and aftermath of World War I, Labour Party policy and his leadership of the party, working conditions, and women's education.

Papers of Alfred Morris, Baron Morris of Manchester and Labour politician, 1965-1997. Comprises material relating to Morris' work for disabled people; papers relating to Morris' wider work as a Member of Parliament and to his Wythenshawe Constituency and Manchester; papers concerning Labour Party issues, the Co-operative movement and other organisations and institutions.

Papers relating to Rees Jeffreys' involvement in the Roads Improvement Association and the Road Board; road legislation, finance, design and development; Road Congresses; roads overseas; the relationship between road and rail transport; roads during the two world wars and their reconstruction in the post-war period; motor legislation and motor organisations; motorways; town planning; transport congresses and transport policy; transport infrastructure in the Commonwealth; bridges; buses and tramways; Rees Jeffreys' book, 'The King's Highway'; journals concerned with transport; and personal material, including private correspondence, biographical writings and overseas tour diaries.

Correspondence, drafts of published works and press cuttings relating to British government and administration, and local government and planning.

Papers of Richard Wainwright MP, c 1868-2005, including personal papers, papers relating to the Colne Valley constituency and general election campaigns, articles, speeches and press releases written by Wainwright and Liberal Party policy papers; papers relating to Richard Wainwright's time at Cambridge University, his work for the Friends Ambulance Unit during World War II and the Rowntree Reform Social Services Trust (now the Joseph Rowntree Reform Trust). Further papers relate to his wife, Joyce's, involvement in the Yorkshire Women's Liberal Federation.