Captain Raymond 'Jerry' Roberts, one of the last remaining codebreakers who worked at Bletchley Park during World War Two, has died aged 93.
Captain Roberts (pictured) was integral to the work carried out at Bletchley Park, cracking German codes during the war, which helped cut the conflict by an estimated two to three years.
He joined the codebreaking unit at the site having studied French and German at university and was part of the team that worked on the so-called Tunny code that was used to break Hitler's own messages.
“This was intelligence gold dust, really top-level stuff," he told the BBC in 2013, about the importance of the work.
Roberts also said the development of the Colossus codebreaking machine at Bletchley had helped speed up the process of deciphering messages by "the order of 20 or 30 times".
The chairman of the Bletchley Park Trust, Sir John Scarlett, paid tribute to Captain Roberts as “a true gentleman" and an “outstanding ambassador” for Bletchley Park.
“In World War Two he was a key member of the team who deciphered the most secret communications of Hitler and his top commanders, work of incomparable importance for the outcome of the war,” he said.
“Unfailingly modest about his own achievements, he was committed to the end to achieving recognition for the work of his colleagues and the contribution of all those who worked at Bletchley Park. He will be greatly missed. Our thoughts are with his devoted wife, Mei."
His passing comes a few months after the government issued a royal pardon against renowned codebreaker Alan Turing for his conviction for homosexuality that occurred after his pioneering efforts during the war.
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