(1) Migrated Defence of Britain Project database record originally compiled from various sources
The two databases developed by the Project can be searched on-line through the Archaeology Data Service at http://ads.ahds.ac.uk/catalogue/specColl/dob/index.cfm
(2) C S Dobinson 1996 Twentieth century fortifications in England, volume 1. Anti-aircraft artillery : England's air defence gunsites, 1914-46
Further information about monuments may be obtained by contacting Archive Services, through the
English Heritage website.