Captain Jerry Roberts MBE died last Tuesday at the age of 93. Captain Roberts received his MBE as a result of his work trying to promote the of work his former colleges at Bletchley. He believes that the four T's are yet to receive enough recognition for the work they did during the war. The four T's stand for the
Testery , Tommy Flowers, Alan Turing and Bill Tutte.
Roberts is one of the reasons why I have started spending one Saturday a week producing this badly written rambling blog, because he inspired me I suppose to try and help the heroes of Bletchley Park get the recognition they deserve.
Captain Roberts arrived at Bletchley Park in 1941 after completing his degree in German at University Collage London. One of his professors at university Prof. Leonard Willoughby was a former Room 40 Code Breaker during the first world war and recommended him to GC&CS.
Before he arrived at the park he was first interviewed by Victor Marks who would be become a shift leader in the Testery. He told Masters that he enjoyed chess and attempting the Times Crossword puzzle. He was then sent to the Park.
When he arrived at the Park he was interviewed again, this time by senior Code Breaker and legendary code breaker John Tiltman. Roberts and the other members of the Testery helped to break the Tunny Cipher used by the Lorenz 42 which was used by the high ranking members of the German military. Roberts once decrypted a message signed by Hitler himself.
Tunny was so complex that it had the allied codebreakers completely stumped for the first two years of the war. The machine had 12 wheels compared to Enigmas three. the first five wheels enciphered the letter, then the next five enciphered it again. There were two wheels in the centre which added stutters to the code. These were random characters which were designed to make the enciphered message appear random. The total number of possible encryptions multiplies out to around 16 million million million. The fact that Roberts and his team were breaking this code by hand for the first few years of the war is remarkable.
After the war Roberts was transferred from Bletchley to the War Crimes Investigations Unit. Here he again put his German to good use and learnt to drive for the first time. He didn't enjoy the work as much as his work at Bletchley.
He then went on to have a successful career in marketing and advertising until he retired in 1993.
In 2002 he was finally able to talk about his work at Bletchley Park and it wasn't long before he began campaigning to get his colleges work recognized.
https://www.youtube.com/watch?v=OqxDEm0BTw0