Only one record that was vaguely similar??? Edwardian Index. Victoria 1902-1913 Surname: JACOBSEN Given Names: Anna Jacobine Kjirstine Event: B Father: Jens Peder Joha Mother: Annie Sofia BENTSEN Birth Place: DANDENONG Year: 1902 Reg. Number: 9784
Maybe a marriage certificate will help to identify 'your' lady in question? Either way it would seem there was a Scandinavian background.