Career
He received his bachelor"s degree there in 1927 and then worked as assistant to Robert Menzies in Melbourne. The two eventually became lifelong friends, and when Menzies became attorney-general he appointed Stirling as his secretary (1934-1936). Stirling joined the Department of External Affairs in Canberra, where he headed the political section for a year.
In 1937 he was sent to London as a liaison officer with the United Kingdom, and stayed there through World World War World War II In the meantime he was appointed an Officer of the Order of the British Empire in 1941.
After the war (1945-1946) he became high commissioner in Ottawa, where he fully employed his knowledge of French. In 1947–1948, he was for fifteen months the minister in Washington, United States, and in 1948 appointed as high commissioner to South Africa.
After becoming Prime Minister in 1949 Menzies sent Stirling to the Netherlands, where he served as Australian Ambassador from 1950 to 1955. While staying there Stirling helped soften the Dutch position to the territorial claims of Indonesia, and was appointed Commander of the Order of the British Empire in 1953.
After that he was ambassador to France (1955-1959), Philippines (1959-1962), Italy (1962-1967) and Greece (1964-1965).
He retired in 1967, declined a knighthood, and returned to Melbourne, where he wrote seven books in the 1970s. He died in 1981 in East Melbourne and was buried in the Melbourne General Cemetery.
