Hi there,
I can see a Florence OLSEN, domestic duties at 197 Harris St, ULTIMO on the 1903 Electoral Roll for West Sydney. NO ONE else with that surname at that address.
Do you have the dc for Olaf OLSEN?
Do you have any birth certs for children of Olaf and Florence OLSEN? Who was the informant, and what info did they provide about Florence?
Cheers, JM