“…One of the major impediments to women pursuing more research-based work in observatories in North America and in Britain was the exclusivity of the main instruments in observatories to males (Larsen 2009, Brück 2009). There was further social discouragement for women to work at night as the observatories were, by their nature, in isolated and poorly lit locations but according to social scientists, in Europe (Brück 2009) and in North America (Rossiter 1980,1983; Mack 1990a, 1990b; Larsen 2009), some women did ‘breach the divide’ (Larsen 2009). I will now examine two outstanding individuals, Greayer and Peel, and how their work ‘breached the divide’ in Australia.…”