Fred Martin’s family only discovered after his death he had worked on the WW2 codebreaking machine.

Sotherby's says the Ai-Da Robot work "marks a moment in the history of modern and contemporary art".

Dorothy Smith, who intercepted messages from the Nazis, is given a card from the King and Queen.

Betty Everest's son says she analysed signals intercepted between countries during World War Two.

Leon McAnally has written about 300 places "associated with death, suffering and tragedy".

The Bletchley Park installation will see an AI character give tailored responses is a "world first".

Gladys Lewis, of Sproatley, was awarded a top French honour for her role in wartime codebreaking.

Joan Clarke, who grew up London, was played by Keira Knightley in the 2014 film The Imitation Game.