DD 1 to Section Heads Apr 3 on centralisation of standard English translations for...

DD 1 to Section Heads Apr 3 on centralisation of standard English translations for technical German words and publishing of official glossaries, replies from Heads; draft letter Apr 6 from DD 1 to C to send to ACAS I requesting more RAF officers and ORs at BP for Overlord; PS Milner-Barry to EWT date-marked 10.4.44 but probably error for 10.7.44 as EWT in Washington at this time, Red key-sheet captured for June giving complete key and wirings of Umkehrwalze D; USSTAF to BP on classification of BP EP Apr 1, reply Apr 9; Williams to WTC for DD 1 Apr 2, Whitchurch and Hawklaw to give Vichy - FE circuits top priority status; Lt Col Sayer to Lt Col BE Wallace on his arrival in WTC with summary of his job description Apr 4; Sayer's summary of positions at Chicksands since Sept 1942 when station had 100 sets, increase of 83 sets since then; congratulatory letters from John de Grey of WTC to OCs UK Sigint stations on way stations had handled German c/s change of Apr 1, de Grey's letter to Sayer Apr 8 for WTC report for w.e. Apr 8 on his letter to stations and other actions he had taken; DMI, Maj Gen JA Sinclair, to Commandant BP MW Col Tiltman congratulating him on way German c/s change of Apr 1 had been solved in 9 days; Apr 6 WTC to O/Cs Army Sigint stations in UK, Station Officers' meeting to be held at BP Apr 15, minutes of meeting Apr 15, next meeting June 15; John de Grey's report Apr 6 on his visits to Met Office intercept stations at Dunstable and Monks Risborough, GPS to WTC Apr 8 with details of GP and German military nets suitable for cover trial at Monks Risborough, WTC to Dunstable giving trial cover details; WTC to WOYG Apr 10, 4 US Sigint officers from Bexley Heath to visit Beaumanor Apr 19-21; WTC to Major Webster, (BP liaison post for Overlord), with synopsis of cover as at Mar 31; BP's intelligence priorities and cover assessment update Apr 13 replacing that of Mar 1; agenda for meeting at BP Apr 14, probably on diplomatic intercept problems, John de Grey to attend for WTC and station reps to be present, WTC notes to be considered at Station Officers' meeting on Apr 15 on future conduct of such meetings, minutes of meeting chaired by Sayer; WTC to DD 1 on intercept of complete 8-part message from Japanese Military Attaché after his tour of German coastal defences in France, success of tip-off from Berkeley St resulted in appropriate cover being laid on at Hawklaw, Whitchurch and Mauritius, intelligence from this message was presented to the PM and also played a large part in the planning for Overlord; Milner-Barry to DD 1 and WTC with E processing statistics for first 4 days of April; letter from Alexander, Chairman of Uncle D Committee, to PS Milner-Barry Apr 6 with arguments for and against capture of an Umkehrwalze Dora as an aid to breaking E; Col Bicher of ETOUSA to DD 1 Apr 3 stating USA wished to take control of processing of German Army Playfair; Col Scott of SHAEF to EWT, DD (Y) and Col Bicher Apr 8 with Sigint Memo No 6, "Utilisation of US and British Sigint Units for SHAEF and Support of Sigint Units with Ground Forces Overseas", DD (Y) calls meeting to implement proposals Apr 14, Apr 10 more discussions, BP objections, proposals go against formation of Major Brown's section at BP in support of Overlord, WTC's objections to Memo No 6 Apr 11, Apr 13 DD 1 to DD (Y) and to Col Scott at SHAEF with amended SHAEF Sigint Memo No 6 and copy of letter to Bicher at ETOUSA giving reasons for not accepting Bicher's offer to take over processing of medium and low grade cyphers, DD 1 to DD (Y) Apr 14 after speaking to Bicher, difficulty in negotiations, DD (Y)'s draft version of Col Scott's responsibilities in SHAEF for processing German medium and low grade traffic, compromise proposal has processing taking place at both BP and SIS ETOUSA Weymouth St; Apr 1 AS summary of reporting of Sigint during W Front operations, arrangements for transit of raw material from W Front to BP Apr 1; HQ BC to HAS with example of informal report for bomber crews on results of bomb damage to their targets Apr 2; report on visit by F/L Hayward of AS to AEAF on Apr 1; AS to AM on division of reporting between Kingsdown, Cheadle and BP, discussion meeting to be held Apr 7, minutes of meeting, DD 3 and Wing Cdr Garrett of AS present, DD 3 to Air Cdr Easton Apr 14 suggesting amendments to minutes; weekly report from Met Section for w.e. Apr 9; HQ ADGB to AS Apr 6 re handling of MSS reports, BP's reply Apr 11; Apr 13 new AS sub-section to be known as Signals Section to be formed wef Apr 17 for liaison with AEAF W Front and 276 Wing CMF, document lists all overseas addressees and official phonetic alphabet, final order issued Apr 15; Sixta report on printer cover comparison between Kedleston Hall and Knockholt Apr 14; Col O'Connor in Washington to EWT accompanying Mar 31 copy of functions of Col Bicher of SIS ETOUSA; DD 1 to EWT in New York Apr 9 with update of developments at BP; DDI 4 arranges Sigint courier rail service from Gorleston via Yarmouth to Liverpool St and AM for BP wef Apr 10, Kingsdown DR to pick up Gorleston logs at AM and take them with all south coast R/T logs to BP; ETOUSA paper on operational control and technical direction of Sigint Apr 5; weekly Chicksands' cover return for w.e. Apr 1; Kingsdown Sigint daily test broadcast to start Apr 8; Apr 14 Movement Order No 3, move of RAF 365 WU from Sutton Valence Maidstone to Richings Park in London area, Apr 12-15; Apr 14 1 SIC of 21 AG to close comms in London and open at Rustington Apr 15, new telephone extensions for 1 SIC officers Apr 14; OC WOWS Forest Moor Harrogate to CSO (SW) on telephone links to BP Apr 15; BP report Apr 1 on material of Mar 29 on German contingency plans in Holland to combat enemy paratroop landings; AS reply Apr 6 to DDI 4 over details contained in OPI report of Mar 31, discrepancy in reports between German intentions and actual German sorties flown; Williams' report on Foynes Radio Eire for w.e. Apr 7 and 14, final report Apr 14 unless anything of interest in future; HS Marchant to DD 3 on ISOS MEL series reporting on UK orbat Apr 7/14; DD 1 to C Apr 13 listing 14 intelligence highlights of Fish processing Feb-Apr reported by Hut 3L; MW report on German anti-invasion exercise in Dunkirk area night of Apr 14/15

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