Historian Jenny Hocking wants made public letters written between Buckingham Palace and Sir John Kerr during the 70s crisis

Gough Whitlam and his wife Margaret greet the Queen at the opening of the Sydney Opera House in October 1973.
Gough Whitlam and his wife Margaret with the Queen in October 1973. Two years later he was dismissed as prime minister by the governor-general Sir John Kerr. Photograph: National Archives of Australia