- FondsSJCR - The Records of St John's College
- SubfondsSJCS - Clubs and Societies
- Series50 - The Purchas Society
- Subseries1 - Committee Papers: Purchas Society
- File1 - Committee Papers (1970-1979): Purchas Society
- File2 - Committee Papers (1980-1989): Purchas Society
- File3 - Committee Papers (1990-1999): Purchas Society
- File4 - Committee Papers (2000-2009): Purchas Society
- File5 - B.H. Farmer Fund: Purchas Society