- Bundle of correspondence marked "info from patients" and pedigree charts, 1954-1955;
- "Medical correspondence", including correspondence between Renwick and Professor Norma Ford Walker and a letter from Renwick to Professor Harry Harris, 1954-1957;
- "Various medical and hospital letters", including a letter from Renwick to Dr Deryk Darlington 1954-1958;
- Miscellaneous correspondence, including correspondence between Renwick and Dr Patrick Hall-Smith, 1963-1987;
- Family information and other related data.
Folder originally marked P2 .