Send a message to the person who requested a photo of the grave monument of Sophia Higgins with the following comment:
Charles and Sophia Higgins are my great-great grandparents; the eldest of their two sons, Charles and William Higgins emigrated from Tasmania to Otago New Zealand and I descend from William. I was aware the Sophia was buried in the Church yard and imagined that Charles would be too as he had been the Sexton at St John's for over 50 years - but I have not been able (until now) to see the headstone.