Send a message to the person who requested a photo of the grave monument of Winifred Maude Metcalfe with the following comment:
I think Winifred is my grandmother, she married Harold Wentworth Metcalf and died soon after my mother was born. Her maiden name was Jobey and I have her parents on my tree, her age is right as is her birthday, and I have her death certificate. Never knew where she was, I hope it's her!