Pillbox (Widdrington Village) - 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The information on this website is based on a range of published and unpublished works.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) GUARD, 1993. Northumberland Coastal Survey. Unpublished
(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) Gazetteer of Defence Sites from the Henry Wills Collection