Moira Beaty obituary

My friend Moira Beaty, who has died aged 92, was an artist and teacher who played a key role during the second world war as a Bletchley Park cryptographer.She arrived at Bletchley Park, where she joined the group known as ISK (Illicit Signals Knox), as a typist in the machine room. Her boss was Peter Twinn, who with others had been involved in cracking the Enigma code machine used by the German secret services. Moira quickly demonstrated an ability to identify patterns and codes, and joined the