C.G. McKay


McKay, C.G. "Anglo-Finnish SIGINT Cooperation, 1940-1941." Journal of Intelligence History 3, no. 1 (Summer 2003): 69-81. [http://www.intelligence-history.org/jih/previous.html]

Abstract: "The Molotov-Ribbentrop Pact gave a new actuality to the necessity of expanding British coverage of Soviet signals traffic. The author introduces and comments upon a number of British documents dealing with British cooperation with the Finnish Radio Intelligence Service in the months leading up to Barbarossa."

[WWII/Eur/Finland; UK/WWII/Overviews]

McKay, Craig Graham. A Friend Indeed: The Secret Service of Lolle Smit. Aug. 2010. At: http://intelligencepast.files.wordpress.com/2010/08/lollesmitessayr1.pdf.

This is a Web-only article that comes out of the author's ongoing research involving Raoul Wallenberg. McKay uses his wide-ranging research to tell the intriguing story of Smit's actions in, first, Bucharest and, from September 1941, Budapest while working for the well-known Dutch company Philips. The author links Smit to intelligence-related activities with both the British SIS and the American ONI, as well as with rescue operations for Jews.


McKay, Craig Graham. From Information to Intrigue: Studies in Secret Service Based on the Swedish Experience, 1939-1945. London: Frank Cass, 1993.

Herman, FILS 12.5, says that this "admirable book" looks at "Sweden as an intelligence battle ground and listening post" and at the "wartime development of Swedish cryptanalysis." It serves as an "introduction to an underestimated intelligence community in World War II." For Kruh, Cryptologia 18.2, "the major thrust of this excellent work ... is the variety of clandestine activities by foreign embassies and their intelligence staffs in Stockholm and the interplay between each other and their host.... With almost 600 footnotes and an extensive bibliography, this book is an excellent source for further research or reading."

According to Surveillant 3.4/5, From Information to Intrigue is an "illuminating and reliable account of some of the key activities of the Allied secret services and of their German counterparts in Sweden.... New light is shed on Siegfried Ascher, the spy in the Vatican.... Well documented and with an extensive bibliography."

Watt, I&NS 9.2, calls McKay an "assiduous comber-through of the open British and German materials.... But he has also used the published Swedish materials, and ... had access to Swedish archival materials, including ... some originating with the Swedish Security services.... [He] has [also] been able to tap a number of private sources.... [This is] one of the most useful and important books yet to appear on intelligence."


McKay, Craig Graham. "German Intelligence and the Flight of Rudolf Hess." Journal of Intelligence History 7, no. 2 (Winter 2007-2008). [http://www.intelligence-history.org/jih/7-2.html]


McKay, Craig Graham. "German Teleprinter Traffic and Swedish Wartime Intelligence." In Colossus: The Secrets of Bletchley Park's Codebreaking Computers, eds. B. Jack Copeland, et al., 328-336. Oxford & New York: Oxford University Press, 2006.

[UK/WWII/Ultra; WWII/Eur/Sweden]

McKay, C.G. "Iron Ore and Section D: The Oxelbsund Operation." Historical Journal 29 (1986): 975-978.


McKay, Craig Graham. "The Krämer Case: A Study in Three Dimensions." Intelligence and National Security 4, no. 2 (Apr. 1989): 268-294.

The author looks at the work of Karl-Heinz Krämer, of Abwehr Air Intelligence, in Stockholm from May 1941 to May 1945. The three dimensions used in surveying the activities of Krämer represent the German, British, and Swedish perspectives. McKay argues that Krämer "supplied various German central intelligence organs with a continuous flow of information."

[WWII/Eur/Ger & Sweden][c]

McKay, C.G. "Our Man in Revel." Intelligence and National Security 9, no. 1 (Jan. 1994): 88-111.

The focus here is on the "activities of Ronald Forbes Meiklejohn and his agent BP11 in the Estonian capital Reval (now Tallinn) in 1921."


McKay, Craig G., and Bengt Beckman. Swedish Signal Intelligence 1900-1945. London: Frank Cass, 2002.

Hess, JIH 3.1, calls this "an important account about ... Sigint as it developed in a medium-sized, neutral country of Europe.... This definitive, exhaustive and illuminating account draws on the official archives notably from Sweden and provides new and surprising results.... The centrepiece of the study ... is the Sigint contribution to Sweden's neutrality in two world wars, particularly in the second.... [T]he book is well presented and thoroughly edited."

For Van Nederveen, Air & Space Power Journal 17.3 (Fall 2003), this "first authoritative account of Sweden’s SIGINT [is] both valuable and unique.... The authors are to be commended for their detailed, up-front explanation of SIGINT: how radio and telegraph coding was used between various countries and their diplomatic missions, what kinds of transmissions third parties could intercept, and the numerous tasks involved in decoding that data.... SIGINT books are rare, and this one is a must-read for intelligence professionals.... Historians interested in World War II may even have to reconsider some events of that war after reading this book."

Kruh, Cryptologia 27.2, calls this work "a definitive account of the evolution of Swedish signal intelligence between 1900 and 1945.... It is an interesting and surprisingly revealing source of European cryptology in the first half of the twentieth century." To Erskine, I&NS 18.3, the authors "have researched their subject thoroughly and know it well." The work "deals mainly with the collection and breaking of messages and the establishment and organisation of the various bodies which were responsible for Sigint. It contains comparatively little on analysing the resulting intelligence, or how it was used by policy makers."

[Interwar/Sweden; OtherCountries/Sweden/Gen; WWI/Other; WWII/Eur/Sweden]


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