( 1) Ordnance Survey Map (Scale / Date)
OS 6" 1956
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( 2) General reference
Little Guide Lincolnshire, 2nd Edn 1924 (J C Cox) Page(s)97
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( 3) Department of the Environment 1973 Ancient monuments in England : a list prepared by the Department of the Environment, corrected to 31st December 1971
Page(s)64
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( 4) Field Investigators Comments
F1 BHS 15-MAR-65
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( 5) RCHME/EH Aerial Photographers Comment
Helen Winton/22-JAN-1993/RCHME: Lincolnshire NMP
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( 5a) by A E B Owen 1992 Castle Carlton: the origins of a medieval `New Town'
Lincolnshire history and archaeologyvol 1 (1966) -
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( 6) Scheduled Monument Notification
07-JUL-1999
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(7) by R Allen Brown 1989 Castles, conquest and charters : collected papers
Page(s)106
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(7B) General reference
Book of Fees I, 175
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(7C) General reference
Reg. Antiquissimum (Lincolnshire Record Society) 6, 144-5 note.
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