Lenox Hewitt

Sir Lenox Hewitt OBE
Secretary of the Prime Minister's Department
In office 11 March 1968 – 12 March 1971
Secretary of the Department of the Environment, Aborigines and the Arts
In office 31 May 1971 – 19 December 1972
Secretary of the Department of Environment and Conservation
In office 20 December 1972 – 9 January 1973
Secretary of the Department of Aboriginal Affairs
In office 20 December 1972 – 9 January 1973
Secretary of the Department of Minerals and Energy
In office 20 December 1972 – 24 August 1975
Personal details
Born	Cyrus Lenox Simson Hewitt (1917-05-07)7 May 1917 St Kilda, Victoria, Australia
Died	28 February 2020(2020-02-28) (aged 102) Edgecliff, New South Wales, Australia
Spouse	Hope Tillyard ​ (m. 1942⁠–⁠2011)​ [1]
Relations	Robert John Tillyard (father-in-law)
Children	Patricia, Antonia, Hilary and Andrew[1]
Occupation	Public servant

Sir Cyrus Lenox Simson Hewitt OBE (7 May 1917 – 28 February 2020) was an Australian public servant. His career in the Commonwealth Public Service spanned from 1939 to 1980, and included periods as a senior adviser and departmental secretary. His most prominent position was as secretary of the Prime Minister's Department during the Gorton government (1968–1971). He worked closely with Prime Minister John Gorton, although his initial appointment in place of John Bunting was seen as unconventional. Hewitt was also influential as secretary of the Department of Minerals and Energy during the Whitlam government (1972–1975), working under minister Rex Connor. He later served as chairman of Qantas (1975–1980).