Nancy Mitford or conviction. Many of her writings—for example, her introductions to the Stanley letter collections, and her "U–non-U" essay of 1955—are staunch defences of aristocratic traditions and values. The outbreak of war in September 1939 divided the Mitford family. Nancy and Rodd supported the war; the Romillys had by this time departed for America, while the others either hoped for an Anglo-German détente or, as with Unity, were openly pro-Nazi. Unity was in Munich when war was declared; in despair she attempted suicide by shooting herself in the head. She survived, and was sent home through neutral Switzerland. Mosley and Diana,
Nancy Mitford in favour of the new arrival was a further source of outrage to Nancy, and throughout their childhood and into young adulthood she continued to vent her displeasure on her sister. In January 1909 a brother, Tom was born, and in June 1910 another sister, Diana, followed. That summer, to relieve the pressure on what was becoming an overcrowded nursery, Nancy attended the nearby Francis Holland School. The few months she spent there represented almost the whole of her formal schooling; in the autumn the family moved to a larger house in Victoria Road, Kensington, after which Nancy was educated