Island House, East Blackdene, St John's Chapel - Source of Reference
| No. | Originator(s) | Date | Title | Notes |
|---|---|---|---|---|
| 1 | Department of Environment, English Heritage, Historic Buildings and Monuments Commission | 1950 | List of buildings of special architectural or historic interest, also known as "Greenbacks" | LB Volume, Map & Item: 1842, 36, 175 |
| 2 | Island House, East Blackdene | |||
| 3 | Island House, East Blackdene | |||
| 4 | Island House, East Blackdene | |||
| 5 | Island House, East Blackdene | |||
| 6 | Island House, East Blackdene | |||
| 7 | Ordnance Survey | Ordnance Survey Archaeology Card AKA National Non-Intensive Archaeological Record (England) | ||
| 8 | Ryder, P | 2005 to 2006 | Medieval and Sub-Medieval Defensible Buildings in County Durham | Gazetteer 5, page 7 |
| 9 | Ryder, P | St john's Chapel, Island House | ||
| 10 | Ryder, P | St john's Chapel, Island House |