Gp Capt Winterbotham at SIS HQ to EWT with suggestions for improving intelligence...

HW 14/91

1943 Nov 1-15

Gp Capt Winterbotham at SIS HQ to EWT with suggestions for improving intelligence value of AS BMP report Nov 4, AS to AM Nov 10 with suggested new BMP formats; C to MOL requesting more labour and priority be given to construction of new Sigint station atForest Moor, Harrogate, Nov 1, reply from Sir Godfrey H Ince MOL Nov 4, tour notes Nov 2 by Capt GJ Easterbrook, E8 WO, after visiting Forest Moor, requests urgent action at high level, HQ Northern Command York to Director of Fortifications and Works London Nov 6 on problems with Forest Moor, some 160 more men required and project now 8 weeks behind schedule, MI-8 to EWT same subject Nov 6/11, DD (S) Serial Order 134, telephone links now installed to Forest Moor Nov 9, C to Sir Godfrey Ince, MOL, re shortage of labour for construction at Forest Moor Nov 11, results of GP Domino intercept at Beaumanor and Forest Moor, with comments on individual operators at Forest Moor Nov 1-12, evaluation of first intercept logs from Harrogate Nov 11; DDMI (O) to AD (S) objecting to Hut 3 notice by Wing Cdr Jones re procedures for signals distribution Nov 2, reply from AD (S) supporting Jones Nov 6, DDMI (O) states Nov 8 that WO will not comply with Jones' directive; paper by Jones to MI-8 Nov 14 supported by EWT requesting promotion to Lt Col for Major Leatham of Hut 3 together with agreement for other MIS promotions and postings; AD (S) to Gp Capt Winterbotham on liaison with Coastal Command and also on use of Sigint codewords, unwise for BP to use prefix Ultra as recommended by Sigint Board, 2/8 Nov; Nov 3 more decrypts of GP messages from Polish Sigint unit at Stanmore for Oct 12-13, GPS to AD (S) Nov 5 stating Poles were duplicating BP efforts, more need for closer coordination of resources, AD (S) to C on same subject Nov 8; MS to Lt Col Sayer Nov 4 suggesting tactical Sigint unit be sent for reception trials in West of England, intercept to be sent to 21 AG, trial to be in preparation for new Western Front, BP to Supreme Allied HQ Nov 13 requesting 21 AG field Sigint unit be deployed to SW England; Sayer to Heads of Huts 3 and 6 on future role of E Task Allocation Section of WTC, coordination meetings, reply from Hut 6 Nov 9; GP RFP designators; DOs from Chicksands to be cleared to visit Hut 6 Nov 8/11; papers by Lt Col Crankshaw and Major Gadd on reliability of c/s identification Nov 9; paper by Williams of BP on cover procedures Nov 11; JS Colman of Hut 6 to Sayer on GP cover at Bitonto Nov 11; statistics for GP cover at Kedleston Hall Nov 8-14, proposed GP cover list for Shenley Nov 14; Kenworthy at Knockholt to Sayer re tech equipment for Hawklaw and Brora Nov 12; list of named personnel in AS with responsibilities for specific German codes Nov 5, AS suggestion for improving Sigint support broadcast from Cheadle in Walrus code asking for suggestions from recipients of broadcast Nov 4, AS orders Cheadle to provide special Sigint support service to Admiralty in Walrus code Nov 10, AD (S) to HAS Nov 4 re distribution of Portuguese decrypts, AS to start weekly meetings on Orchestral cypher problems Nov 10, AW Bonsall to HAS on "Ghost Voice" Allied deception against GAF fighters, breaking of GAF validity code, recommendation for future reduced use of Ghost Voice Nov 9, AS preparation for Second Front in the West Nov 15, AS to DDI 4; liaison with Washington, paper of Nov 4 by CHOD Alexander of GCCS on Bombe policy of OP-20-G and OP-20-G liaison with BP, this sent to EWT for meeting at BP with Cdr Engstom of USN, GC McVittie of Met Section to Professor Bayly at Arlington Nov 13 re work on GAF and other foreign met codes; liaison with WO, AM, Admiralty and RSS; liaison with Canada, Berkeley Street to send certain commercial decrypts to Admiralty for DNI Ottawa Nov 15; MI-8 to USA at Norfolk House Nov 6 on requirement for Sigint channels between UK and US Army Groups under command of SAC, Maj Gen Whiteford of 21 AG to Director of Sigs WO re need for Sigint channels between 21 AG and 1 US Army Group Nov 11, copy to Sayer at BP; Spanish, Portuguese and Italian military networks at Kedleston Hall dropped to release operators for training in Japanese morse Nov 7; WO to Lt Col MJW Ellingworth officially appointing him CO of Beaumanor WOYG Sigint station Nov 13; F/L Prior, ex AS BP and ex RAF Sigint ME, appointed liaison officer between RAF Y Service and US Air Commands Nov 15, to visit BP AS; Wing Cdr Jones to AD (S) for EWT Nov 1 re AM signal suggesting Ultra unreliable because of German exageration and cover ups, strong opposition from BP, ACAS (I) agrees to withhold signal which would be discussed by all intelligence Directors at weekly meeting; HAS to AD (S) Nov 15 requesting C's agreement to add DDI 4 as additional addressee to AS CX/MSS/J reports from Brown keys used by GAF R&D Organisation, AS issues modified BMP report and new ZIP/DISTAC-series report for DDI 4 comment Nov 11

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