This sort of project is bound to require help from others. I am indebted to the following for their help and support:
- The various authors from whom's texts I've collected this data and who have inspired me by their work and their great regard for the subject. Please see the bibliography.
- Much of the bibliography for individual sites is derived from the three excellent bibliographies produced by John Kenyon for the Council for British Archaeology (Volumes 2 and 3 are available online) and the annual bibliography produced by him for the Castle Studies Group. - also to Gillian Scott who has produced these annual bibliographies since 2014.
- The National Monument Record Team of Historic England (formerly English Heritage) at Swindon for much information on various sites, for running the PastScape online version of the National Monuments Record and other online resources from which much of the information on this site is derived and for their kindness in allowing me to use that information.
- The Royal Commission on the Ancient and Historic Monuments of Wales for running the Coflein online version of the Welsh National Monuments Record from which much of the information on this site is derived.
- Numerous county archaeologists and local councils who have put their Historic Environment Records online in various places and formats.
- Various county record holders and museum curators who have helped with requests for information.
- Various and numerous librarians and booksellers who have helped with requests for books etc.
- Owners, curators and staff at numerous historic buildings and monuments for their time and willingness to share their knowledge and enthusiasm.
- Jeff Thomas for his praise, support, information and the inspiration provided by his The Castles of Wales web site–which was started in 1995 and still remains the best general public castles web site with much to offer the serious student.
- Michael Cook for his encouragement and support. His Castles Abbeys Medieval Buildings website remains online although, sadly, not actively expanding.
- Andrew Muller for his photo of Holwell Motte and Bailey.
- Paul Reeves for sharing his information on obscure castle sites.
- Peter Iles for his information on the castles of Lancashire.
- Richard Skinner for his information on Holme Spinney.
- Michael Radcliffe for information on Parwich 'castle'.
- Jamie Ayers for information on Ceaser's Tower, Coventry.
- Rebecca Roseff for helping to resolve some questions about possible castles in Herefordshire.
- Neil Guy for general encouragement and suggestions on layout and content.
- Paul Remfry for general support for the idea of the site, much specific information on many castles in the Marches and for a number of suggestions for online resources.
- Paul Brown for information on Oswestry Castle and Town Walls.
- David Roffe for information on Newhouse Castle and Grantham, Lincolnshire and for help with design of this site.
- Rob Dixon for information on Boarstall Tower, Buckinghamshire.
- Peter Ryder for sharing thoughts and comments on tower houses and bastles.
- Jon Seddon for locating 'Barkshale Wood' and Helmsley Lodge in Lyndhurst Park.
- Will Davies for pointing out errors and adding information on castles sites in Monmouthshire.
- Christopher Taylor for information on Hanwell Castle.
- Peter Thompson for information on Ty Gwyn, Barmouth.
- Phil Wood for information and a citation regarding Newbury and Hamstead Marshall castles.
- James Davidson for information and a citation regarding Hen Domen, Llansantffraid Deuddwr.
- Dr Charles Coulson for help with the list of licences to crenellate.
- James Wright, a former county archaeologist in Nottinghamshire for updates on several sites he and others have worked on in Nottinghamshire.
- David Maynard for pointing out an error and for information on several sites in South Wales.
- Robert Waterhouse for information on some south Devon sites, particularly Keynedon Barton.
- Charles Taylor for temporarily hosting a mirror of this site on his eCastles web site.
- Dave Tuck for letting me know of an error in the map reference for St Peter's Church Bywell.
- Laura Woodruff for information and notes about a site in Wales.
- Norman MacKillop for keeping me informed with developments on his fine northofthetyne.co.uk website.
- Matthew Emmott for keeping me informed of developments on his fine Castle Blog and for help and support with design changes.
- Alan Hobson for information on Crakye Castle, Yorkshire
- The Castle Studies Group for a grant to fund research on licences to crenellate and for the more general support of a group of like minded people.
- John Goodchild for information on John Pilkington and his various houses.
- Dr Andy King for information on Northumbrian licences to crenellate.
- Scott Lomax - Urban Archaeological Database Office for Nottingham - for comments on Nottingham Town Walls.
- Julian Livsey for permission to use his fine photo of Castle Pulverbatch.
- Rob Prince for information concerning Sully Castle, Glamorgan.
- David Taylor for clarifying for me the situation with Court Lodge, Udimore.
- Jack Long for informing me of a tradition of a castle near Ospringe, Kent.
- Roger Wilson for pointing out some errors and suggesting numerous additional sites.
- Halley vd Vecht for pointing out an error with the Kippex Manor Garth Hill record.
- Peter Cattermole for web links for Bridgwater Castle and town gates.
- Andrew Herrett for inspiring me to get out in the field rather more and take some photos for his Castle Facts website and for help and support with design changes.
- Brandon White for taking the time to point out some web design flaws and suggesting some changes.
- Meg Twycross for the antiquarian reference to Preston Patrick Hall.
- Chris Drakes for additional sources for Drax Castle Hill.
- Catherine Bancroft for pointing out an error in the Talkin Head Bastle record and for sharing her enthusiasm for Cumbrian stone houses.
- Martin Taylor, Hull City Archivist, and the staff of Hull History Centre for their help and for permission to use images of the patent letter of Edward III grant licence to crenellate the wall and houses of Kyngeston upon Hull.
- Colin Boylett for sharing his comments on a few Herefordshire sites.
- Roger Wilson for informing me of the standing remains of Newcastle Friary which I'd previsouly recorded as 'nothing visible' and for suggesting several possible sites in Pembrokeshire and Shropshire.
- Tricia Hayes for information about Connahs Hey in Flintshire.
- Tony Cousins for a correction on the entry for Skelsmergh Hall, Cumbria.
- John Kenyon for his bibliographies, encouragement and much informed discussion..
- Peter Purton for information on the siege castles of Arundel and for more general support.
- Peter Burton for helping to consolidate the information on the supposed intended castle of Winchelsea, for help and support with design changes and for his general support.
- Joy Tudberry for support with the work on crenellated town houses.
- John Barnes for information regarding Etchingham Manor.
- Kevin Webster for help and support with design changes and for his general support. I owe you another dinner.
- Andrew Sandon, of the Harptree History Society, for information on Thomas de Gournay and Richmont Castle.
- Andrew Knight for reminding me of the excellent picture resource Gathering the Jewels web site.
- Bill Woodburn for help with licences to crenellate and his general kindness.
- Barry Cooper for information regarding Cole's Tump.
- Victoria Brown and David Evans, of Humber Archaeology, for help with the East Yorkshire HER.
- Chris Bond for locating Cayl Castle in Cornwall, a site mentioned by John Leland.
- Dr John Jenkins for detailed information on the licence to crenellate Torre Abbey and for bibliographical suggestions and references.
- Jason Dodds, of the West Yorkshire Archaeology Advisory Service, for help with the West Yorkshire HER.
- Gillian Eadie for adding references to Piel Castle.
- Dr Hugh Wilmott for comments on the barbican of Thornton Abbey.
- Hannah Vincent for references to Castleton, St Athans.
- Dr David Mercer for general support and for much informed discusssion on many castles and on the development of castle studies.
- Stephen Hobbs for information on Hartland Castle and the Dinham family.
- John Busby for taking the time to let me know of several mapping errors.
- William Cash for letting me know of developments at Upton Cressett Hall.
- Lisa Kopper for letting me know of changes to the listed status of Acton Court.
- Joe Schweninger for help with bibliographic references.
- Simon Taylor for information about and access to Paull Holme Tower.
- Chris Phillips, who maintains the very useful Some notes on medieval English genealogy website, for help with online sources.
- Miles Kerr-Peterson for giving me advanced notice of his paper on Bridgwater Castle.
- Therron Welstead for letting me known of some errors with 12 figure OS map references.
- David Bartlett for information on Brimpsfield Castle.
- Alex Bellisario, of the Hampshire AHBR, for particularly care in response to several enquires on Hampshire Castles, notably Pinsley Motte (Portsdown) and Warblington Castle
- Richard Nevell for updates on several online sources.
- Bruce Watson for so kindly providing his listing of fortified medieval bridges with his research comments.
- Dr Simon Roffey for information on St Mary Magdalen Leprosaria.
- Rachel Swallow for much detailed information on early Cheshire castles, notably Aldford Castle and the two castles of Shocklach and Shocklach Oldcastle.
- John Tayleur for bring to me attention The Nunnery on Alderney.
- Jason Monaghan for sharing his thoughts on The Nunnery.
- Dan Spencer for letting me know of his paper on Edward Dallingridge of Bodiam Castle.
- Peter Mallalieu for information on several bastles.
- Ian Underdown of the Hamble Local History Society for information on the possible 15th century fortification of the royal docks on the Hamble River.
- Neil Ludlow for several references to his archaeological work on Pembrokeshire castle and other informed discussion.
- Greg Sarnecki for suggesting adding the, now lost, moat at Low Catton, Yorkshire
- John Busby for corrections.
- Clive Betts for information and corrections regarding the list of llysoedd.
- Richard Prest for information on the possible Henrician artillery blockhouse at Nettlestone Point on the Isle of Wight
- The National Library of Scotland for permission to use their scan of R.B. Armstrong's facsimile of Aglionby Platt
- Dave, of Abarothsworld, for several site suggestions.
- Nick Moore for sending me a scan of a ?1839 tithe map showing 'Peel Castle' (Marton Peel Tower)
- John Charles Davies for information and some references about Pen-y-Bryn in Caernarfonshire.
- Phil Knight for letting me know of an error in the Adpar motte record.
- Jason Peters for much interesting discussion on forest law and some useful references.
- Mike Dobson for information on Gallant's Bower, Dartmouth
- Me Mum and Dad for taking me to so many castles when I was young.
- Jan for keeping me company at home and on trips to castles.