Walltown Tower (Greenhead) - Source of Reference
The information on this website is based on a range of published and unpublished works. Below is a list of the source of information used in writing this record.
1) Ordnance Survey Map OS 6 inch (Prov) 1946
2) Hodgson, J C, 1840. History of Northumberland, part 2, vol 3. (324)
3) Hodgson, J C, 1828. History of Northumberland, part 3, vol 2. (217)
4) Field Investigators Comments F1 RWE 30-OCT-1966
5) Long, B, 1967. Castles of Northumberland. Newcastle upon Tyne: Harold Hill (166)
6) This record includes National Record of the Historic Environment Information provided by Historic England on 4 January 2021 licensed under the Open Government Licence [http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/]
6a) Dodds, J F, 1999. Bastions and Belligerents: Medieval Strongholds in Northumberland, p372-3
6b) David J Cathcart King, 1983. Castellarium anglicanum : an index and bibliography of the castles in England, Wales and the Islands. Volume II : Norfolk-Yorkshire and the islands, p355