I also went to St John's school and vaguely recall the headmaster telling us he was the Queen's physician.
Never heard any mention of him at the BI though.(just noticed there was a house added named Cohen when the school moved to Tollemache road)
Would like to know where he lived in Birkenhead
Lord Henry Cohen
b.21 Feb 1900 d.7 Aug 1977
1st Baron Cohen of Birkenhead (1956) CH (1974) Kt (1949) MB BCh Liverp (1922) MD (1924) MRCP (1926) FRCP (1934)Ü
Henry Cohen was born in Birkenhead and was educated at the Church School of St John (where the fees were 2d a week), then proceeded as a scholar to the Birkenhead Institute. From there he won a scholarship to Oxford, but on grounds of expense he transferred it to Liverpool, and even there he felt obliged to walk to and from the ferry each day to cut down his expenses. click