( 1) Ordnance Survey Map (Scale / Date)
OS 6" 1960
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( 2) Royal Commission on Historical Monuments (England) 1910 An inventory of the historical monuments in Hertfordshire
Page(s)81
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( 3) edited by William Page 1912 The Victoria history of the county of Hertford, volume three
The Victoria history of the counties of England Page(s)221
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( 4) Field Investigators Comments
F1 PAS 19-FEB-73
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( 5) Transactions of the East Hertfordshire Archaeological Society
H C Andrews 4, 1909-10 Page(s)90
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( 6) General reference
Mediaeval Castles in Hertfordshire 1971 16 (D Renn)
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