Frank Leslie Stillwell during the Australasian Antarctic Expedition.

Frank Leslie Stillwell OBE, (27 June 1888 – 8 February 1963) was an Australian geologist, winner of the David Syme Research Prize awarded by the University of Melbourne in 1919 and the Clarke Medal awarded by the Royal Society of New South Wales in 1951.

Stillwell was educated at the University of Melbourne and joined the Australasian Antarctic Expedition (1911–1914) as geologist. He spent 17 months in Antarctica under Douglas Mawson. He was stationed at the Main Base at Commonwealth Bay.

Stillwell then worked at Broken Hill, New South Wales 1919–1921, as assistant geologist under Dr. Ernest C. Andrews. He mapped the Kalgoorlie, Western Australia goldfield 1927–1928.

Stillwell joined the Royal Society of Victoria in 1910 and served as President from 1953 to 1954.

He also discovered and named the rare-earth boro-silicate mineral Stillwellite-(Ce).

References

Frank Leslie Stillwell 1888–1963 Australian Academy of Science
Arthur A. Wilcock, 'Stillwell, Frank Leslie (1888–1963)', Australian Dictionary of Biography, Volume 12, MUP, 1990, pp. 94–95.

Awards Preceded byIan Murray Mackerras Clarke Medal 1951 Succeeded byJoseph Garnett Wood

Australasian Antarctic Expedition

Personnel

Main Base party	Bob Bage Frank Bickerton John Close Percy Correll Walter Hannam Alfred Hodgeman John Hunter Frank Hurley Sidney Jeffryes Charles Laseron Cecil Madigan Douglas Mawson Archibald McLean Xavier Mertz Herbert Murphy Belgrave Ninnis Frank Stillwell Eric Webb Leslie Whetter
Western Base party	Charles Dovers Charles Harrisson Charles Hoadley Sydney Jones Alexander Kennedy Morton Moyes Andrew Watson Frank Wild
Macquarie Island party	George Ainsworth Leslie Blake Harold Hamilton Charles Sandell Arthur Sawyer
SY Aurora officers	John H. Blair John King Davis Frank D. Fletcher F. J. Gillies Percival Gray Clarence Petersen de la Motte Norman Toutcher
Other	Hugh Evelyn Watkins

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