Hi Chris,
Do you live in the IOM, as I would like to visit and compare. I am also looking for my G.G.Grandfather's grave and his wife (John Holmes & Agnes - Nee: Dobson) I think they are buried in the Onchan Churchyard but don't know the year.
My email address is johnholmes@ozemail.com.au. I will be in IOM in April 2013.
John Michael Holmes