It's funny how everyone mentions Alnwick. If I remember rightly the cherubs were not even in the auction catalogue, despite the presence of over 4,000 lots.
Olympic's reception room chandelier from the grand staircase on D-deck might not have been a cherub, but it was certainly in the same place. It ended up with Thomas Ward's in Sheffield, although what happened to it ultimately is unknown to me.
I don't recall having references to the cherubs post-1935 in my archive, although people such as Stuart Kelly, Brian Hawley and Daniel Klistorner who are members of this board may know more. Stuart's research in particular is concentrated on the auction and subsequent dispersal of fittings, whereas mine is spread over the entire ship's career.