Kennedy worked as Hodgkin's research assistant. Includes 'Intended research - a study by x-ray crystallographic methods of insulin and of related structures', n.d., and 'Summary of x-ray work on insulin since October 1959' by Ann Kennedy, 25 May 1960.

King was based at the National Institute for Medical Research in London. Ergometrine methiodide and methobromide.

Kirz was an Associate Professor at the State University of New York at Stony Brook who came to work in Hodgkin's laboratory for a year. Arrangements to work in Oxford.

Knox was an American x-ray crystallographer who worked with C.K. Prout in the Chemical Crystallography Laboratory, Oxford, on various organic complexes of molybdenum. Principally recommendations.

Kon was based at the Organic Chemistry Department, Imperial College London. Specimens sent by Kon for x-ray examination by Hodgkin. Three 1934 letters are addressed to J.D. Bernal.

Kratky was based at the Institute of Theoretical and Physical Chemistry, University of Graz, when he initiated the correspondence.

Hardgrove was based at St. Olaf College, Northfield, Minnesota. Papers comprise suprasterol research; sabbatical year in Oxford 1965-6.

Harrison studied chemistry with Hodgkin in Oxford and then researched there on ferritin and at King's College London on fibrous proteins. She subsequently made her career at the University of Sheffield. Research and career. Includes 'outline programme of work on ferritin and apoferritin' 1957 and recommendations.

Haworth was based at Armstrong College, Newcastle (University of Durham). Examination by x-ray crystallography of specimens sent to Hodgkin by Haworth.

Hodder was an Oxford chemical crystallographer with a particular interest in computer programmes for structure analysis. Includes recommendations.

Huber came from the University of Manitoba, Winnipeg, to do D.Phil. research in Hodgkin's laboratory. She subsequently returned to Canada to work in the Division of Pure Chemistry, National Research Council, Ottawa. Papers comprise arrangements to work in Oxford etc.