I see that no one has so far responded to your post, and I regret that I can't say anything useful about it either. However, I was attracted to it by the fact that I spent some of my formative years in Newton Abbot (off and on during the war, and in a less chaotic period from 1950 to 1956) -- not very close to 48 Twickenham Road, however, but on the other side of Torquay Road, at 20 Keyberry Park (which is not a park, but is close to Forde Park, which is).