- FondsSJCR - The Records of St John's College
- SubfondsSJCS - Clubs and Societies
- Series50 - The Purchas Society
- Subseries3 - Events: Purchas Society
- Sub-sub-series1 - Dinners: Purchas Society
- File1 - Dinners (1977-1987): Purchas Society
- File2 - Dinners (1988-1997): Purchas Society
- File3 - 50th Anniversary Dinner: Purchas Society
- File4 - Dinners (1999-2009): Purchas Society