Send a message to the person who requested a photo of the grave monument of J Plummer with the following comment:
I believe that John and Sarah (nee Warren) Plummer are my direct ancestors! I believe that they are the parents of Louisa Plummer (born c 1828) who married Charles Boughton, and begat my great grandfather Arthur Boughton, the father of Arthur Edward Boughton, who is the father of my mother Doris Mary Boughton. That's how I see it, and to have an image of my great x 4 grandparents gravestone would be wonderfully moving.