In September 1926 Wilkie was appointed curator of the
Art Gallery of South Australia at
Adelaide replacing the recently resigned
H. van Raalte, and proved himself a popular. He moved from Melbourne to Trevorten Avenue,
Glenunga to take up the post. in their 1932 Spring Exhibition. In 1934 Wilkie joined a
University of Adelaide anthropological expedition to
Central Australia where he painted portraits of
First Nations people near
Cooper Creek. The portraits were later exhibited at the Art Gallery of South Australia. He died aged fifty-six in an Adelaide private hospital on 4 September 1935 after successive operations for
appendicitis. His wife Alma (née Tunnock), a dentist and musician, had died aged 44 in 1930, and he was survived by their daughter, Jean.
Andrew Wilkie (c. 1853–1948), director of the
Melbourne Zoo 1923 to 1936, was an uncle. HIs successor as Director of the Art Gallery of South Australia,
Louis McCubbin, son of
Frederick McCubbin, was appointed in December 1935. == Collections ==