 His wife accompanied him briefly to the north, but then returned to live with her mother for the rest of the war.Later McClintock worked in intelligence in Matlock, and in London, as a preparation for governing a defeated land – training police and firemen to serve in an occupied Germany.In June 1944 McClintock crossed to Normandy soon after D-day; following the German retreat across northern France and the Low Countries, he said that he was sometimes advancing 100 miles in a day, without ever meeting resistance that required him actually to use the skill he had acquired as a gunner.