Parliamentary Private Secretary to the Prime Minister Bonar Law's Parliamentary Private Secretary, J.C.C. Davidson acted in effect as his Chief of Staff. Margaret Thatcher's downfall from the Conservative Party leadership in 1990 is attributed by many to the actions of her Parliamentary Private Secretary, Peter Morrison, in failing accurately to count votes amongst Conservative backbenchers. Some Parliamentary Private Secretaries to the Prime Minister go on to hold higher office; Lord Dunglass served as Parliamentary Private Secretary under Neville Chamberlain and later went on to serve as Prime Minister in his own right. There can be multiple Parliamentary Private Secretaries to the Prime Minister at a given time.
Spouse of the Prime Minister of Australia most notably Dame Enid Lyons (1932–39), who had 12 children (one died in infancy). In 1943, four years after her husband's death in office, she was the first woman to be elected to the House of Representatives. She was a junior minister in the Menzies Government from 1949 to 1951. Some Prime Ministers' spouses have received official recognition for their services to the community: Tamie Fraser was the first spouse of a Prime Minister to be provided with an official secretary for dealing with her correspondence. There are currently seven living spouses of former prime ministers of Australia: The most