I have been reviewing the official guides to ancient monuments in state guardianship. A 1954 list showed that the following sites in Northumberland had guidebooks:
- Corbridge Roman Station
- Dunstanburgh Castle
- Housesteads Roman Fort
- Lindisfarne Priory
- Norham Castle
- Tynemouth Priory and Castle
- Warkworth Castle
- Warkworth Hermitage