Unofficial - A Personal View
The article you link to here is much more about the legacy of the slave trade than about the history of Hartsheath itself. I hope to write more about the latter in future! In the meantime, here's the National Monuments Record of Wales listing: http://www.coflein.gov.uk/pdf/CPG108/Dr Miranda Kaufmann
Thank you for the link Dr Kaufmann. I'm sure local people and historians will appreciate further information about this hidden jewel in our midst.