First of all, here’s the Historic England map of listed sites in Davidstow Parish:
Next there’s the Davidstow Parish Council web site
Davidstow Parish – On the Online Parish Clerks web site
Davidstow Parish Church – On the Cornish Moorland Churches web site
Davidstow Parish Church – On the Boscastle Village web site
Davidstow Residents Action Group Facebook page (Closed group)
Hallworthy Facebook page