She was the wife of Sir Paul Hasluck, Governor-General of Australia 1969-1974. In 1974, he was offered an extension of his term by the Prime Minister, Gough Whitlam, and he was willing to serve an extra two years, but Lady Hasluck (as she then was) refused to remain at Yarralumla longer than the originally agreed five years. Whitlam then appointed Sir John Kerr.
Hasluck himself implied this in his book, The Office of Governor-General and also in the Queale Lecture.
Dame Alexandra Hasluck"s published works included talks to the Royal West Australian Historical Society as well as 11 books and numerous articles She died in 1993. Dame Alexandra and Sir Paul Hasluck are joint eponyms of the Western Australian Federal House of Representatives Division of Hasluck.