On 24 September 1938, Maclean took up a post as Third Secretary at the British embassy in Paris. In the spring of 1939, an Anglo-French attempt was made to include the Soviet Union into the "peace front" that was intended to deter German aggression. Because of the French involvement in these Moscow negotiations, the telegrams passing between embassies allowed Maclean access to much information. Maclean kept Moscow informed in regard to relations between Germany and the British Empire, on the one hand, and
Britain and France on the other, as the French foreign minister
Georges Bonnet worked to end French security commitments in Eastern Europe. He also kept Moscow informed about the development of
Anglo-French plans for intervention in the war between Finland and the Soviet Union. In December 1939, Maclean met Melinda Marling, the daughter of a Chicago oil executive. She was a teenager when her parents had divorced, her mother moving to Europe. In October 1929, Melinda and her sisters went to school at
Vevey, near
Lausanne, where their mother rented a villa, and spent their holidays at
Juan-les-Pins in France. Melinda's mother moved to New York, marrying Charles Dunbar, an executive in the paper industry, and brought her daughters to live with them in
Manhattan, where Melinda attended the
Spence School. After graduation she spent some months in New York City then returned to Paris, where she enrolled at the
Sorbonne in Paris to study
French literature. Mark Culme-Seymour later described her as "quite pretty and vivacious, but rather reserved. I thought that she was a bit prim. She was always well-groomed, lipstick bright, hair permed, a double row of pearls around her neck. Her interests seemed limited to family, friends, clothes and Hollywood movies." In the 1950s, Culme-Seymour tracked down the exiled Macleans in Moscow, and another Melinda emerged. She told him that she knew she would be going to Russia right from the beginning, even before Maclean defected. Soviet archives confirm this view. As Maclean told Harris, on the evening he met Marling, he saw more to her: "I was very taken by her views. She's a liberal, she's in favour of the Popular Front and doesn't mind mixing with communists even though her parents are well-off. There was a White Russian girl, one of her friends, who attacked the Soviet Union and Melinda went for her. We found we spoke the same language." Maclean had told Marling about his role as a spy. He told Harris that Marling not only reacted positively, but "actually promised to help me to the extent that she can – and she is well connected in the American community". On 10 June 1940, as the
German Army approached Paris, Maclean and a pregnant Marling were married at the local
mairie. The British Embassy was evacuated, and the Macleans drove south with one of Donald's colleagues. They were able to escape France on a small merchant ship, and went to London. ==London during the Second World War==