- FondsSJCR - The Records of St John's College
- SubfondsSJES - Estates
- Series2 - Estates and manors
- Subseries3/AWH - Ashwell, Hertfordshire
- Sub-sub-series1 - Maps and plans: Ashwell
- Item1 - Kirby's Manor
- Item2 - Exchange of Lands
- File3 - Coprolite Pits
- File4 - Kirby's Farmhouse
- File5 - Drainage
- Item6 - River Rhee