I have studied all of the 1,178 photos of churches, schools and similar building that I have in my collection. Paying close attention to any on or near the number 8 route, I have studied the book about the number 8 route that the photo comes from. I even went through all the photos that I sorted for my post on the number 8 route a little while back and in desperation I went around the route on Google in the vain hope that something might remain from the late 50's that might help with identification, all to no avail.
I am now out of ideas unless anybody has a suggestion. We do think it's a church or a school don't we?