This set of details can be used to find groups of people with a particular geographic relationship to Australia.
'Expatriates' are people who were born in Australia but left to live all or a large portion of their working lives overseas (e.g. Peter Carey and Henry Handel Richardson).
'Visitors' are people who were born elsewhere and have made brief, perhaps recurring, visits to Australia (e.g. D.H. Lawrence and Maeve Binchy).
Placing a date in the field 'Arrival in Australia' can be used to find people born outside Australia who visited or who moved to Australia to live in that year.
'Departed from Australia' would similarly capture expatriates and visitors who left Australia in that year.
You might be interested in...