James MacGibbon MC DD (1865–1922), minister of Glasgow Cathedral.
[1] James was commissioned as a second lieutenant at the outbreak of World War 2 and was posted to the Intelligence Corps due to his fluency in German.
In spring 1941, he was posted to the War Office in MO3 (Military Operations, Section 3).
[2] At his deathbed, he admitted in a 12-page affidavit that he had spied for the Soviet Union during the war, passing on information about German troop deployments and information about Operation Overlord to the Soviets before the Tehran Conference in 1943.
He potentially used the cover names "Dolly" and "Milord" when spying during the war.