The collection covers most aspects of Williams' life and career after 1939. Papers from her work with the British Colonial Service in Ghana, 1928-1936, were largely lost during transit to her next appointment in Singapore, but the typescript copy of her 1935 report The mortality and morbidity of the children of the Gold Coast is extant. Many papers relating to Williams' work with the British Colonial Service in Singapore, 1936-1941, were lost during the Japanese invasion, but she took a few files into Changi jail, where she wrote up the report An experiment in health work in Trengganu in 1940-1941. Notebooks, correspondence and writings made during her internment, when she was appointed as camp nutritionist by her fellow women prisoners, are also in the collection. Post-war papers cover most aspects of Williams' work, including positions with the World Health Organisation, the American University at Beirut and Tulane School of Public Health, as well as correspondence and collected reprints relating to work carried out in 'retirement' at Wyndham House, Oxford.

Papers of Benjamin Robert Haydon, 1826-1846, comprising letters to William Newton, his landlord, 1830-1845, relating to house repairs, his debts, requests for loans, death of his daughter, 1831; legal papers relating to Haydon's imprisonment for debt in the King's Bench, 1830, namely inventory of his goods for debt, authorisation to distrain goods, notice of court hearing; letter from Sir George Philips, 1836, concerning his picture 'Christ's Agony'; receipts for Haydon's life insurance policy payments, 1833-1845; Newton's marked copy of the catalogue of the sale of Haydon's effects, 1846.

Papers of the Ad hoc committee/interdisciplinary working party on the confidential enquiry into perinatal mortality, 1981-1985, comprising correspondence on setting up the meetings, copies of minutes, draft guidelines and comments.