Labour government, 1974–1979
In March 1976, having just turned sixty years old, Wilson resigned as Prime Minister, ending his leadership of the Labour Party after thirteen years, and a total of nearly eight years as Prime Minister. He was replaced by James Callaghan, who had held senior government positions during both of Wilson's ministries, and had served as a Shadow Cabinet member in the early-1960s.
Watson Government
The Watson Government was the third federal executive government of the Commonwealth of Australia. It was led by Prime Minister Chris Watson of the Australian Labor Party from 27 April 1904 to 18 August 1904. The Watson Government was the first Labor Party national government in both Australia and in the world. Watson was aged just 37 when he became Prime Minister of Australia, and remains the youngest person to have held the post.