General correspondence file largely from Wilkinson's time as Director of the Department of Haematology. There are a number of items either received from or sent to Wilkinson's patients and likewise a significant amount of correspondence discussing patient cases with other medical professionals. It appears that many of the patients were seen privately and include a number of local eminent individuals.
Other than patients the topics discussed include the salaries of his technicians, electricity supplies, personal finances, membership of Old Arnoldians, the fixing of his car radio, visit of Dr Alfredo Pavlovsky, previous research into pernicious anaemia, folic acid, a project on edible albumen from bovine blood plasma, preparation of dried blood plasma, supply of R48, haemopoietic activity in mammalian livers, names for blood cells, presence of gonadotropic hormones in the urine of giraffes and okapi, vitamin B12, blood counts of the mass radiography staff, and relative morbidity and mortality from pernicious anaemia.
The file also contains a pamphlet published in 1951 by the Fellowship for Freedom in Medicine entitled 'The Medical Surrender (July, 1948). An account of the events leading up to the acceptance by the medical profession in Great Britain of the National Health Service Act'. There is also an article cut out from the News Chronicle from May 1946 about the values of folic acid.