AD (S) to Chairman YC on undesirability of using expression"from usual source" for...

HW 14/62

1942 Dec 21-1942 Dec 31

AD (S) to Chairman YC on undesirability of using expression"from usual source" for E Sigint, Dec 29; letter from EWT to DDMI (O) on Army's failure to provide accommodation for Army and ATS personnel working at BP, Dec 22; staff recruiting and selection;letter from C to EWT suggesting that his photo reproduction section should be transferred from SIS to GCCS at BP Dec 26, section transferred to BP by Dec 31; stress and TB in the Cypher Office, Dec 28; table illustrating distribution of Bombes, Wrens and other staff at BP, Adstock, Wavendon, Gayhurst, Stanmore and Letchworth Dec 21, Bombe changes at Wavendon and Stanmore Dec 26, final distribution of Wrens and Bombes Dec 29, letter from Director WRNS on medical care of Wrens working for BP; HAS requests AM approval for increase in AS establishment Dec 29, Dr GC Mc'Vittie of Met Section asks EWT for more staff to break DAN cypher Dec 28, letter from HAS to AD (S) on machine requirements for cypher breaking, suggests signal to Tiltman, then visiting US, asking which US Navy equipment should be requested by BP Dec 23, final draft of AM paper on admin and operational control of RAF and WAAF personnel at BP Dec 21, Admin Order No 4 by S/L Beynon SOA RAF Dec 25, AS report on Research and Exploitation Dec 15-31, IE suggestions to AD (S) for improving distribution and marking of BP EP, subsequent orders for BP EP from AD (S) and follow-up orders for AS Dec 31; problems at Aldford House with German printer intercept from Knockholt, investigation to be held Dec 21, Knockholt Octopus and Codfish traffic, paper on improving quality, comparison between good intercept at St Albans and that from Knockholt Dec 23; 6 monthly review of E exploitation; letter and bigram frequency counts to be undertaken for many listed foreign languages Dec 29; list of cypher books being read in Section 3M; French Resistance decodes from AD (S) to MI-6 Dec 27; cover of German groups in Russia from ME; YC and BP papers on points to discuss with Col Scott, visiting from ME, on future of UK Sigint in Med and surrounding areas, with map, Scott arriving London Dec 22; cover priority order for 351 WU Gibraltar, Dec 23; lengthy M/S notes from F/L Waters after visiting BP and AM on improving efficiency of Sigint in Cairo, comments by EWT sent to AM DDI 4 Dec 25; 6 IS report on German DF results on RAF ME comms and recommendations for improved Comsec by RAF; BP instruction on jamming interference sent by MI-8 to Beaumanor, Kedleston Hall and Shenly Dec 27; letter from 6 IS to MI-8 on number of sets required to cover Spanish comms network; note by Oliver Strachey, first UK Sigint representative in Ottawa to AD (S) arguing against AD (S)'s proposal to liquidate CEU, subsequent letter from Col JH Tiltman who had been in NY on Dec 22 for meeting on future of CEU with Kendrick, current UK representative in Ottawa, to Mr LB Pearson, previous Chairman of CEU, suggesting that Canadians should help with Japanese cypher problem, further letter from Tiltman of Feb 15 1943 summarising history of CEU with suggestions for its future; liaison with US Navy and War Depts; correspondence between EWT and Major Stevens in Washington, Kendrick in Ottawa and Bayly in NY, Stevens asks EWT Dec 24 if BP can assist with new Sigint role for US Coast Guard Sigint organisation, old role of monitoring German agents in South America no longer exists; correspondence between AGD, Stevens and Kendrick; exchanges between EWT and his PA Lt Dudley-Smith, then visiting Washington Dec 21, EWT asks Col Tiltman and Turing also both visiting Washington to look into the Navy Dept's machine processing equipment, Lt Cdr Saunders at BP informs Dudley-Smith of British Type X for US; Dudley-Smith in NY by Dec 23 and liaising between Maidment of BSC and CEU Ottawa; liaison between BP and Lt Col Bicher's US ETO Sigint organisation in UK, BP working aids and lecturers for Bicher; correspondence with CBME, Gibraltar, Algiers and Malta, definition of Hutment report information from BP to ME Dec 23; liaison with Merry in Australia, Col Crankshaw in Moscow, Crankshaw states no Sigint liaison between Russian Army and Navy, with Shaw in Kilindini, with IWIS, Sigint cover position in Mauritius sent to IWIS Dec 22, liaison with South Africa, South African Sigint detachment at Heliopolis Egypt Dec 31, and with 371 SU Freetown Very comprehensive report from Wing Cdr Winterbotham on his recent tour of the ME and his attempts to ensure Allied military commanders received an efficient and secure service of operational Sigint, Dec 25; report dated Dec 20 by P/O G Stanton of RAF Cheadle who led a Sigint team on board HMS Bulolo during Allied Operation Torch which culminated in landings in Algeria and Morocco on Nov 8; copy of new Allied phonetic alphabet to be introduced from Jan 1 1943; interrogation of German Sigs POW captured at Algiers; MI-8 provides new form for periodic Service returns of Sigint sets, operators and tasking Dec 21; operational control of fixed Sigint stations in UK Dec 21; minutes of 4th meeting of DF Coordination Party held at Devonshire House Dec 23, MI-8 tasking for DF technical expert Dr Barfield, ordered to report to BP; NIB report on See-Saw transmissions, NIBS 11/42 of Dec 21, traffic extracts Dec 29; Periodic Sigint Summary No 1, R/T, for period Nov 23-Dec 7 from 380 WU Algiers Dec 28, second Periodic Sigint Summary from 380 WU Algiers for Dec; list of 52 BP EP reports May-Dec 1942 showing German Sigint results from Russian comms, CX/MSS/S.38 of Dec 27 GAF Experimental Stations, M/S letter from FL Lucas to AD (S) on GAF Field Divisions Dec 23. Very comprehensive report from Wing Cdr Winterbotham on his recent tour of ME and his attempts to ensure Allied military commanders received an efficient and secure service of operational Sigint, Dec 25; report dated Dec 20 by P/O G Stanton of RAF Cheadle who led a Sigint team on board HMS Bulolo during Allied Operation Torch which culminated in landings in Algeria and Morocco Nov 8; copy of new Allied phonetic alphabet to be introduced from Jan 1 1943; interrogation of German Sigs POW captured at Algiers; MI-8 provides new form for periodic Service returns of Sigint sets operators and tasking Dec 21; operational control of fixed Sigint stations in UK Dec 21; minutes of 4th meeting of DF Coordination Party held at Devonshire House Dec 23, MI-8 tasking for DF technical expert Dr Barfield, ordered to report to BP; NIB report on See-Saw transmissions, NIBS 11/42 of Dec 21, traffic extracts Dec 29; Periodic Sigint Summary No 1, R/T, for period Nov 23-Dec 7 from 380 WU Algiers Dec 28, second Periodic Sigint Summary from 380 WU Algiers for Dec; list of 52 BP EP reports May-Dec 1942 showing German Sigint results against Russian comms, CX/MSS/S.38 of Dec 27 GAF Experimental Stations, M/S letter from FL Lucas to AD (S) on GAF Field Divisions Dec 23

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