Gary is approved to value international and Australian art for the Australian Government's Cultural Gifts Program, a Director of the Cruthers Art Foundation, an Advisory Board member for the Cruthers Collection of Women’s Art at the Lawrence Wilson Art Gallery, and a member of the UWA Cultural Collections Board. Formerly the Chief Curator | Deputy Director of the Art Gallery of Western Australia where he worked from 1983-1987, and from 1995 to 2013; Gary is a Fellow of the Art Gallery of Western Australia Foundation, and from 1988 to 1995 was the Senior Curator at the Vancouver Art Gallery.