Four senior heads of sections ("Huts") and their deputies wrote to Churchill, who had visited "BP" on 6 September 1941, where he made a speech saying he appreciated their work.
When he became Prime Minister he asked in September 1940 through his personal assistant Desmond Morton to see "all the ENIGMA messages" every day.
When Churchill went into Hut 8 his path was blocked by Shaun Wylie and then by Conel Hugh O'Donel Alexander; he was "nonplussed" by the apparent chaos with two senior codebreakers both sitting on the floor and studying papers.
[7][8][9] Then Churchill spoke to the codebreakers from a mound of builder's rubble at the end of Hut 6 in front of the house, saying with deep emotion "how grateful he was to us for all the good work we were doing in the war effort".
There was now also a danger that skilled male staff in his section and with BTM (the British Tabulating Machine Company at Letchworth) would be called up for military service.
Much wireless traffic in the Middle East, including some with “Light Blue” intelligence, could not be picked up by local intercept stations.
Shortage of WRENS from the Royal Navy had not delayed output from BP, but it meant that Hut 6 & 8 staff needed for other jobs had to do the bombe testing for stories themselves.
He rang the bell of 10 Downing Street and was admitted, saying he had an important secret and confidential letter to deliver in person to the Prime Minister.
[1][2] Milner-Barry met Alastair Denniston in the corridor some days later, who '"made some wry remark about our unorthodox behaviour, but he was much too nice a man to bear malice" Then Stewart Menzies appeared at BP, he was '"very cross" and personally rebuked Welchman for violating the chain of command.
[9][14] Churchill used his red Action this Day tags to attach to memos that he wished ministers to action immediately, This led his private secretary John Peck to put out a spoof memo with the red tag and with Churchill's forged initials.