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,
They Were Sisters from the immediate aftermath of World War I through to the late 1930s. The screenplay was developed by Pertwee from a popular novel of the same name by Dorothy Whipple, published in 1943. "They Were Sisters" features the spouses of both Mason and Calvert; Pamela Mason (billed under her maiden name Pamela Kellino, and playing Mason's daughter despite being only seven years younger) and Peter Murray-Hill. Mason later admitted that he acted most of his bullying, sadistic role with effectively an ongoing hangover as a means of dealing with the frustration he felt from his role and the British film