Capt JC Manisty to PS Milner-Barry on subject of E clearance or people "in the know"...

HW 14/90

1943 Oct 16-31

Capt JC Manisty to PS Milner-Barry on subject of E clearance or people "in the know" Oct 16, requests list of cleared personnel, passed on by Milner-Barry to AD (S), reply from AD (S) Oct 28; expansion program for teleprinter circuits at BP 1943-1944, additional circuits to 16 UK locations; Kenworthy at Knockholt to EWT on new Sigint station at Wincombe, Shaftesbury, Oct 17; report by Professor Norman to Wing Cdr Jones of Hut 3 on his visit to 6th Canadian Bomber Gp in Yorkshire and attendance at briefings given by Dr Smith and Professor Wright of ADI (Sc) which incorporated sanitised MSS material, sent on by Jones to AD (S) Oct 17; Lt Col Sayer to HAS on WTC cover control Oct 18, comments by various Section Heads Oct 20-22; paper by HAS on liaison by Operational Watch with Home Commands with examples of Watch Sigint interpretation Oct 16, Wing Cdr Garrett of AS to Gp Capt Winterbotham at SIS HQ on BP's Sigint service to RAF Home Commands Oct 19; Wing Cdr Jones to EWT on bid to upgrade key Army and RAF posts in Hut 3; minute to EWT from Lt Col Taylor, USA and attached to BP, on Sigint support to American HQs in England, ref to visit to BP by Col Clarke of USA Oct 25, new G2 ETOUSA, Brig General Siebert, to visit BP Oct 23, comments from AD (S) Oct 21; EWT to Lt Col Pritchard on non-morse cover; Colman of Hut 6 to Major Sawdon on GP intercept from Polish Sigint unit at Stanmore Oct 20; major Evans of GPS to Sayer on suggestions for improving GP processing Oct 26; RFP designators for Domino GP transmitters Oct 31; Lt Col F Jacob, OC Italian Military Section and ex-Director CBME, to Col Tiltman, Commandant BP Military Wing, re Romanian police traffic Oct 19-21; BP policy on Japanese training courses Oct 21; Colman to Sayer Oct 22 on recorder tests at Beaumanor; AD (S) to Wing Cdr Oeser with list of users of specific German keys; Admiralty to EWT Oct 23 on forthcoming visit to BP by Col Lamplough Nov 8-9; WTC paper Oct 24 on problems at stations and quoted criticism of BP support; 6 pages of GP decrypts Oct 1-21 intercepted by Polish Sigint unit at Stanmore, also referred to as Felden and Source JX, sent by SIS to BP Oct 26; Capt EG Hastings RN, probably new AD (O) BP to Capt Trevor-Roper at RSS on future RSS visits to BP Oct 25; Sayer to MI-8 Oct 25 suggesting Shenley should close when sets there transfered to replace No 1 SWG at Harpendon, MI-8 replies Oct 27 stating Harpendon will close and Shenley remain, details of creation of Shenley CRR party Oct 30, named officers to visit Beaumanor, Kedlestone and Hampstead for training, Shenley CRR to become operational Dec 1, ORs to be transferred from Hampstead; Hut 3 Notice on signal distribution Oct 28; Hut 6 telephone links to Beaumanor and Chicksands Oct 30; paper by Sayer to AD (O) Oct 31 on control and operation of static Y stations in UK Oct 31; BP liaison with AM and WO, with Major Stevens, Col O'Connor and Op-20-G in Washington, flight by Cdr Engstrom from Washington to UK delayed until Oct 20, to arrive London Oct 23, Engstrom to visit BP following day; BP liaison with Merry in Melbourne and Keith in Colombo; US cover plan for Japanese Naval tasks, sent from OP-20-G to C-in-C Eastern Fleet Colombo Oct 27, Op-20-G report Oct 31 on progress against Japanese Naval systems Oct 16-31; liaison with ETOUSA, Sigint support to US HQs in UK Oct 19; WO Draft Supplement of Oct 20 to 32/Wireless/717, Notes on Wireless Interception (Y) Organisation in the Field 1943; exchange between Ministry of Labour and WO Oct 27 on problems over construction of new Sigint station at Forest Moor, Harrogate; GPWI/5, GPS Weekly Notes for Oct 3-10; HAS and EWT to C with message extracts from Spanish AA in Rome, embassy personnel to return to Madrid; Portuguese decrypts for Oct 7-11 sent by AD (S) to SIS Oct 26; distribution lists for AS BMP report Oct 17 and 26; signal from AM to Wing Cdr Jones Oct 29 stating unjustified optimism and exageration by Germans as reflected in E decrypts provided a false picture of German capabilities, Ultra was therefore an unreliable source, replies to ACAS (I) from Jones and Heads of all 3 BP Service sections strongly refuting AM claims

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