Send a message to the person who requested a photo of the grave monument of Evelyn Percy Gem with the following comment:
The Museum of London has objects in its collection donated by Owen Ball Gem, so we're gathering a bit more background information about him. If it is of any help, all four people buried in this grave are siblings. None of them married and in their later years they lived together in Ely Place, Stratford-upon-Avon.