( 1) Ordnance Survey Map (Scale / Date)
OS 6" 1960
|
( 2) Royal Commission on Historical Monuments (England) 1910 An inventory of the historical monuments in Hertfordshire
Page(s)105-6
|
( 3) edited by William Page, F.S.A. 1908 The Victoria history of the county of Hertfordshire, volume two
The Victoria history of the counties of England Page(s)119
|
( 4) Field Investigators Comments
F1 BHS 26-NOV-70
|
( 5) Field Investigators Comments
F2 WDC 27-JUN-90 RCHME Field investigation
|
(6) by David J Cathcart King 1983 Castellarium anglicanum : an index and bibliography of the castles in England, Wales and the islands. Volume I : Anglesey - Montgomery
Page(s)220
|