She will be remembered for the film Mandy from 1952 in which she starred as the deaf girl – her parents being played by Jack Hawkins and Phyllis Calvert.  I remember in the early days of Television this film was reviewed and discussed a lot on its release – and the focus was on the acting on the very young Mandy Miller.

and a few years later she is famous for  her song Nellie The Elephant.

And below in The Snorkel – a film I have just purchased – is Mandy in a grown up role in this Hammer Film

Paul Decker murders his wife in her Italian villa by drugging her milk and asphyxiating her by gas. He cleverly locks the bedroom from the inside and hides inside a trapdoor in the floor until after the body is discovered by servants. He uses a scuba snorkel connected to tubes on the outside to breathe during the ordeal. Decker’s stepdaughter Candy suspects him immediately, especially since no suicide note was found. She also is convinced that he murdered her father years before, but her accusations fall on deaf ears. The ruthless Decker even poisons the family spaniel when the pet takes too great an interest in the mask and realises he will ultimately have to get rid of Candy too.