Hi Aaron, Have you tried the National Archives in Canberra,They have all records of migrants who came to any state in Australia. I went on their site and found 3 Rosowski. What was your g.fathers name? Was he a displaced person ? A Rosowski , series no.A443 in 1952. Jan Rosowski who came to pt.Melbourne 1949 on S.S.Castel Bianco Halina.