Send a message to the person who requested a photo of the grave monument of Bertie Denis McMahon with the following comment:
I am creating a family tree for my children who are the grandchildren of Bertie and Isabel McMahon. If you are able to change details, Isabel was born 29th October 1918 and was 77 when she died, 14 days before her birthday. I have the details of the grave but it would be nice to include a photo of the site for them and their children to see.