He wrote about his life in a book entitled Guilt-Edged. Its content is summed up by Len Deighton in the foreword:
"His mother was an spy in World War I. Ian Fleming was his boss throughout the Second World War. Unwittingly sucked into the world of Nazi espionage during an innocent sailing trip, he was seduced by a lovely but lethal German agent and met Field Marshal Göringface to face. He was the first man to cross the Sahara on a motorcycle and while travelling through the Congo, he accidentally discovered a secret German army. But Romania set the scene for the height of espionage activity – when he single handedly pirated a ship from under Nazi eyes and blew up a vital link in German tanker communications. The man is Merlin Minshall and this is his unique story."
The book was translated into Dutch by Iet Grader and is renamed De Avonturier, published in 1976. ships hall with the Sperwer once owned by Merlin Minshall Son of Colonel Thomas Herbert Minshall, DSO, a well known consultant electrical engineer and newspaper proprietor and Theodora Minshall née Wigham-Richardson, he was educated at Charterhouse and University College, Oxford. Upon graduation Minshall trained as an architect at London University, before embarking on his boat the Hawke on his quest to be the first Englishman to sail across Europe to the Black Sea. Minshall traded for the Hawke in Bosham, exchanging for it from Gerald Hulse in 1931 with a sports car. Hulse had only purchased the Hawke the year before from Dr. Marmaduke Fawkes who had owned the boat since 1926 having bought it over from the Netherlands. Minshall was accompanied by his first wife, Elizabeth, but they separated during this trip and were later divorced. The subsequent encounter with the German agent, Lisa Kaltenbrunner came while sailing down the River Danube. She hitched a lift on his yacht – but it was no coincidence. She had been sent to discover whether he was charting the river and investigating oil storage depots for British intelligence. Having seduced him, she attempted to poison him, but Minshall survived, and the knowledge he had gained did indeed prove useful to the British in a subsequent operation during the war. Minshall was also well known as an amateur racing driver, who specialised in the kind of road races that are generally illegal today. A two time competitor in the Monte Carlo rally, his greatest trump came in 1937, when he was presented with a trophy by Benito Mussolini for winning the 1937 Italian Foreign Challenge Trophy – a three-day, 4,000-mile road race between Rome and Sicily. It involved over 400 cars, and led to the death of four drivers. He also was the first man to drive an air cooled vehicle north to south across the Sahara desert. At the outbreak of World War II, he was recalled to duty as part of the RNVR where he had a varied career, including working for Ian Fleming. Initially he was a watchkeeper in the Admiralty operations room in London. In early 1940 he was a major participant in the failed scheme to block the Danube in Rumania to disrupt German oil imports, working under diplomatic cover as British Vice Consul in Bucharest. Later, in November 1940, leading a joint NID/SOE team Minshall ran Operation Shamrock, where a commandeered fishing smack was used as an observation platform for monitoring German U-boat traffic in the Gironde estuary. Minshall was Mentioned in Dispatches for his part commanding that operation. Subsequently, he ran a section at HMS Flowerdown, using direction finding and transmitter analysis to identify the positions of individual ships. As such, during May 1941 he played a part in the hunt for the Bismarck. Posted to Fiji, he managed to get his posting changed to New Zealand, where he worked on various intelligence projects, including establishing a Z machine intercept station at Rapuara near Blenheim. Recalled to the UK, he was landed in occupied Yugoslavia as officer in charge of the Allied Naval Mission to Tito in Yugoslavia. Minshall was married four times, the first to Elizabeth Dorothy Magdalene Loveday, from whom he was divorced in 1935. His second wife was Isolde Llewellyn, his third Janine Paulette Sergent of Lyons and fourth Christina Majorie Zambra, great niece of the Scottish artist Harrington Mann, with whom he had four sons Peter, Matthew, Luke and Timothy.
