( 1) Ordnance Survey Map (Scale / Date)
OS 6" 1955
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( 2) edited by William Farrer and J Brownbill, M.A. 1908 The Victoria history of the county of Lancaster, volume two
The Victoria history of the counties of England Page(s)523
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( 3) Transactions of the Halifax Antiquarian Society
1929 Page(s)249-53
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( 4) Transactions of the Lancashire and Cheshire Antiquarian Society
19, 1901 Page(s)48-53
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( 5) Scheduled Monument Notification
Ministry of Works 1958 Ancient Monuments of England and Wales p 61a
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( 6) Field Investigators Comments
F1 RWE 26-Sep-1961
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( 7) List of Buildings of Special Architectural or Historic Interest
Ribble Valley, 30 September 1976
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( 8) Scheduled Monument Notification
English Heritage SAM List Lancashire March 1994 p 13
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( 9) Scheduled Monument Notification
English Heritage Schedule Entry 08/04/1997
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( 10) English Heritage Register of parks and gardens of special historic interest in England
Lancashire Part 25
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(11) 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
1 - 1983 Page(s)245
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(12) R Allen Brown, H M Colvin and A J Taylor 1963 The history of the King's Works, volume 2 : the Middle Ages
Page(s)614
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