Colin Preece (1903-1979), winemaker, graduated dux from Roseworthy Agricultural College in 1923 planning to manage the family flour mill. However, after taking an optional subject in oenology, he decided to join the staff at Seppeltsfield. He arrived at Great Western during the depression in late 1932. Starting from a focus on simply keeping the company afloat, he retired 30 years later as one of the key winemakers of Australia, producing a number of dry white, dry red and sparkling wines for Great Western of exceptional complexity and quality. Ranked with Maurice O'Shea as Australia's great winemaker and master blender, in the production of sparkling wine he is said to have had no local peer.