Example of manual index to themes, allowing periods to be in order:
- Aviation in Kent
- First World War Voluntary Aid Detachments and Auxiliary Hospitals in Kent
- Kent's Castles
- Kent's Greatest Archaeological Discoveries?
- The Defence of Kent
- The history of Kent's archaeology
- Industrial Kent
- Medieval Kent
- Anglo-Saxon Kent
- Roman Kent
- Iron Age Kent
- Bronze Age Kent
- Neolithic Kent
- Mesolithic Kent
- Palaeolithic Kent