The Australian Art Association was founded in Melbourne, Victoria, in 1912 by Edward Officer (inaugural president) John Mather, Frederick McCubbin, Max Meldrum and Walter Withers.
Members included Norman Macgeorge (second president), Rupert Bunny, William Dunn Knox, James Ranalph Jackson, and Leslie Wilkie.
William Dunn Knox's first exhibition was in 1918 at the Australian Art Association, Melbourne. He was elected to the Australian Art Association in 1919 and later on the council.
References
Australian Art Association Wikipedia(Text) CC BY-SA