She has received a specially-minted medal and certificate, signed by UK Prime Minister Gordon Brown, issued to recognise their contribution to the war effort.
Mrs Gowing, of Groves Road, Saddle Mews, kept her assignment a secret – even from family and friends – for decades after the war. Now in her 80s, she told Isle of Man Newspapers she was ‘very proud’ to receive the award. She added: ‘It was a very exciting time and I made lots of friends. We still hold an annual reunion at Bletchley Park. ‘But we were sworn to absolute secrecy about our work.
‘Winston Churchill called us the geese that laid golden eggs but never cackled.’