I have lots of information on Annie after she arrived in Australia. I was trying to trace her parents and siblings living in England.
I am pretty sure none of her other siblings went to Australia; only her and her older brother Thomas.
To answer your questions - Annie Tanner went to Western Australia on the ship Fitzroy which arrived on 30 June 1882. The family story is that her older brother Thomas paid for her fare. Annie met Basil/Vasile Theodore/Teodorescu possibly on the same ship (but I have been unable to verify). They married on 23 December 1882, and then moved to South Australia and had six children. Annie died on 14 Feb 1921 in South Australia.
I really appreciate all this help as I have been searching for information on Annie's parents and siblings for about a decade