Although the collection is by no means comprehensive, there are interesting records of many aspects of Wilson's career.
Section A. Biographical: Brings together material relating to obituaries, tributes, honours and awards. Includes Wilson's account of his First World War experiences and his assessment of his scientific publications.
Section B. Research: Although not extensive, provides documentation of a number of Wilson's principal interests including the Salmonella group of bacteria and milk hygiene. There are three laboratory notebooks with experimental data covering the period 1919-45.
Section C. Public Health Laboratory Service (PHLS): Relates chiefly to the unpublished history written by Wilson after his retirement as Director of the PHLS. There is also a little material relating to laboratory design and equipment and PHLS personnel.
Section D. Lectures and publications: The most substantial in the collection. There are records of Wilson's lectures for a period of forty years from 1944, extensive documentation of the later editions of Principles of bacteriology and immunity, and editorial correspondence and papers for the British Journal of Experimental Pathology and the Journal of Hygiene.
Section E. Societies and organisations: Documentation of Wilson's association with ten British organisations including the Medical Research Club, Medical Research Council and Veterinary Club. The Medical Research Council material relates to the Working Party on Tristan da Cunha which was set up to supervise medical investigations when the inhabitants were evacuated to Britain after the island's volcano erupted in 1961. There is also material relating to the Research Foundation, Chicago, which specialised in tuberculosis research, on whose medical advisory committee Wilson served.
Section F. Visits and conferences: Records of a number of overseas trips in an advisory capacity for the World Health Organisation, including to Ethiopia 1964, Iraq 1965, Iran, Sudan and Egypt 1971 and the Philippines 1972, and records of international microbiology congresses.
Section G. Correspondence: Although not extensive, includes a chronological sequence of scientific correspondence, 1930-1987, Wilson's collection of autograph letters addressed to Topley and himself, and references and recommendations.
Section H. Photographs: Photographic records of Wilson, colleagues, conferences and PHLS laboratories.
Section J. Biographical History of Bacteriology: Manuscript of Wilson's history, with correspondence about publication.