One of the things that Jim Grover who organised the exhibition on Nugent Cachemaille-Day found frustrating was that there is no easily accessible image of him, in spite of the fact that he was reasonably well known and only died in 1976.
There are actually two likenesses listed in his entry for the DNB, one held by the British Architectural Library and apparently reproduced in Architect and Building News in July 1934, the other in private ownership, presumably his daughter, Ruth Day, born in 1940. Neither are available online.
If anyone reading this is in the RIBA, could they send me a copy of the photograph which I can forward to Clapham ?