Would like to know where in Australia you are talking about. My grandmother use to talk about an "auntie Alice " who helped raise her after her Mother died in 1924. My grandmother's father's mother's maiden name was o'shannessy. Bridget O'shannessy married Patrick Dunne 1861. One of their son's was Augustus Adolphus who was my grandmother's Father, ie, my great grandfather. I hope this rings bells for you! Cheers, Janelle.