Bastle at Girsonfield Farmhouse (Otterburn) - 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The information on this website is based on a range of published and unpublished works.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) Hodgson, J C, 1827. History of Northumberland, part 2, vol 1. (110)
2) Tomlinson, W W, 1916. Comprehensive Guide to Northumberland. (311)
3) Field Investigators Comments F1 RWE 16-NOV-1970
4) Field Investigators Comments F2 ECW 04-JUL-1974
5) Field Investigators Comments F3 PFR 03-AUG-1990
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, p331
6b) Archaeologia Aeliana 50, p257