Healey Bastle (Nunnykirk) - 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The information on this website is based on a range of published and unpublished works.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) Ryder, P F, 1994-5. Towers and Bastles in Northumberland, part 1 Alnwick District. (38-9)
2) 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/]
2a) Dodds, J F, 1999. Bastions and Belligerents: Medieval Strongholds in Northumberland