i just looked it up as it was before my time. We were both correct !!! 
In 1966, Biggs fled to Sydney, where he lived for several months before moving to the seaside suburb of Glenelg in Adelaide, South Australia
In 1967, just after their third child was born, Biggs received an anonymous letter from Britain telling him that Interpol suspected that he was in Australia and that he should move. In May 1967, the family moved to Melbourne where he rented a house in the suburb of Blackburn North while his wife Charmian and their three sons lived in Doncaster East. He had a number of jobs in Melbourne before undertaking set construction work at the Channel 9 TV studios.
