Send a message to the person who requested a photo of the grave monument of Richard Esterbrook with the following comment:
I am in the USA and will be visiting Liskeard in July and wanted to visit the burial place of any Esterbrook family members. I am a collector of his grandson's fountain pens and a Friend (who's actually a Quaker) and I tried to find the cemetery last year without success. We will endeavour to do so once more. Thank you for your time spent on this project. I was quite unaware that such a site existed until I 'googled'