Hi Steven
You can't post images on any of the 'look-up' request boards here on Rootschat, you're not doing anything wrong.
You don't mention when you contacted the cemetery, I do know that they are inundated with requests for information but their priority is helping the recently bereaved, not family historians.
As Valda says, chatters in and around London are few and far between. Fingers crossed the cemetery office replies soon with the infomation you require.
Dawn