I also have acquired Margaret Bonfiglioli's quasi-biography of her ex-husband, 'The Mortdecai ABC'. There is a photo of the author, I shall be showing it to Mr J.F. Cat of this parish to see if she was the landlady of 18 Norham Gardens when KW (WINOLJAIHVFOK) and the OUSFG library were there.
A search for Geoff Ryman and Norham Gardens, on Google, of course yielded another of my LJ posts. My obsessions are obscure and predictable.