On the Smithsonian site you can download the liner notes which tell us that Mrs Coppard was 23 (in 1956) and a bit about her folk singing in London (concerts organised by A L Lloyd, Ewan McColl).

An Audrey Coppard also wrote a small and curious collection of books. On one of them, 'Orwell Remembered' (copy in the Internet Archive) she is merely described as the collaborator of Bernard Crick, who wrote an Orwell biography. The book originated from a BBC programme. I wonder if she worked for the BBC?