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Gordon Welchman Exhibition

Gordon Welchman: Bletchley Park’s Architect of Ultra Intelligence

This exhibition and the BBC documentary that accompanied it reveals the story behind the man whose inventiveness and vision proved invaluable to Bletchley Park’s World War Two codebreaking.

The exhibition, titled Gordon Welchman: Bletchley Park’s Architect of Ultra Intelligence, is in The Mansion Dining Room, which has been beautifully restored as part of the ongoing work to return the uniquely historic buildings of Bletchley Park to their former glory.

A mathematician and lecturer at the University of Cambridge, Welchman was selected as a potential codebreaker before the war began. He had just a short course in cryptography before starting work at Bletchley Park but, despite this limited training, he quickly made his mark.

His contributions to breaking the Enigma codes included adapting Alan Turing’s design for the codebreaking Bombe machine, changing it into a workable machine. He also established Hut 6, leading the team who decrypted more than 1 million German air force and army codes.

The exhibition highlights Welchman’s contributions to the success of Bletchley Park. It also describes how his 1982 decision to publish details of WW2 codebreaking in his book, The Hut Six Story, led to Government Communications Headquarters at the time describing him as “a disastrous example to others.”

His wartime colleagues could not have thought of Welchman more differently though, describing him in the later 1940s as inspiring, inventive and by one as “one of the most original minds I have ever known.”

After the war ended Welchman continued to be a major influence on the modern world, emigrating to America where he brought the computer age to air traffic control, developed digital computers and taught one of the first ever computing courses.

Both the programme and exhibition are based on Dr Joel Greenberg’s book, Gordon Welchman: Bletchley Park’s Architect of Ultra Intelligence.

Gordon Welchman

Related Pages

Roll of Honour

Welcome to the Bletchley Park Roll of Honour

Who were the Codebreakers?

Nearly 10,000 people worked in the wider Bletchley Park organisation

Roll of Honour

Welcome to the Bletchley Park Roll of Honour

Who were the Codebreakers?

Nearly 10,000 people worked in the wider Bletchley Park organisation