HAHA! Nice one! But maybe RSM Harold Edwin Beesley was posted to Derby and was living in a camp or some sort of accommodation there before deployment. It's a very small photo, so I can imagine George either kept it as a keepsake after it was taken or would have taken it from Henry's pocket after death, and wanted to post it to the address that he wrote upon the back of the photo. But again, it was never posted. Maybe George and others heard Harold talk about living at that address in Derby and thus they assumed that his family were there, or that someone there would forward the photo on.