Red Acre Rifle Range, Seaham Harbour, Seaham (Seaham) - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Ordnance Survey | 1856 to 1865 | First Edition Ordnance Survey Map | |
| 2 | War Office Northern Command | 01-Jun-1918 | List of Lands and Buildings in the occupation of the War Department, 1st June 1918. |