Thanks for your ideas everyone. My thought at first was Windsor as well, but I am unfamiliar with how the castle looks "in real life" as opposed to professional photography, and what the terrain around it is like
The suggestion that it might not be in England triggered some thoughts. The family weren't well off and certainly wouldn't have travelled abroad - however - both my great grandfather and his brother, who emigrated to Australia in about 1911, fought in WW1 and they both sent home photos including some from field hospitals (likely in Turkey) and Egypt. Those photos are of a far poorer quality than this one, though.
Is the taller boy barefoot? Would that happen in 1920's England?
I wonder what this photo had in it that was so important that the sender sent it to Australia.
Thanks again for the ideas so far. Keep 'em coming!
Kez
