Modern Pillbox 100 Meters North of Hive Point, Hawthorn Hive (Hawthorn) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Council for British Archaeology | Apr-1995 to Mar-2002 | Defence of Britain (DoB) Project database | |
| 2 | Unknown | 2010 | Durham County Council Digital Vertical Aerial Photograph Collection 2010 | |
| 3 | DCC | Apr-1997 | Disused Structures on the County Durham Coast | Listed as structure S15 |
| 4 | Beamish, H, National Trust | 1995 | Summary Table of Archaeological Sites | |
| 5 | Boldrini, N | 14-Feb-2014 | 4 Photos of the Pillbox at Hawthorn Hive | |
| 6 | Archaeological Services University of Durham, Carne, P | 04-Dec-1998 | Turning the Tide, Archaeological Assessment | Site Number 114 pg 59 |
| 7 | Unknown | Historic England Aerial Photographs Collection | NMR OS/84015 0004 12-APR-1984, RAF/4D/BR42/B 0036 25-JUL-1940; NMR NZ 4445/5 (31042/PO-625) 08-JUL-1940 |