Arrivals in Australia

Found a good site listing arrivals in Fremantle 1926-1947 http://naa12.naa.gov.au look for passenger search B. Williams on Esperance Bay 28th Dec 1928 Miss E Williams on Esperance Bay 28th Dec 1928, naughty granny you were not married! B.Williams on Hobson Bay 15th April 1932, so the passport stamp for Fremantle 15th April 1931 is indeed wrong which is what i had concluded a while back.