'Professor David Day, an Australian historian, has posited that Menzies might have replaced Churchill as British prime minister, and that he had some support in the UK for this. Support came from Viscount Astor, Lord Beaverbrook and former WWI Prime Minister David Lloyd George, who were trenchant critics of Churchill's purportedly autocratic style, and favoured replacing him with Menzies, who had some public support for staying on in the War Cabinet for the duration, which was strongly backed by Sir Maurice Hankey, former WWI Colonel and member of both the WWI and WWII War Cabinets. Writer Gerard Henderson has rejected this theory, but history professors Judith Brett and Joan Beaumont support Day, as does Menzies's daughter, Heather Henderson, who claimed Lady Astor "even offered all her sapphires if he would stay on in England".'