There's a submitted tree at Ancestry, has Edward GEARY male born 1815, married Agnes RADFORD Sydney 1848, death 1855 Australia cites Victoria BDM V1884874-78/1848 for the Sydney marriage.... (JM notes this is errr ..... odd, as Vic not hived off NSW until 1851 !)
However, for Agnes they have
Born about 1814, Devon, and a sister for Agnes as Elizabeth RADFORD 1821 - 1898
Agnes marrying about 1835, Dronmore, Down, Ireland to James DUST (1806 - )
Children for Agnes and James DUST as Elizabeth, born 1837 Dublin and Emma born 18 June 1841 Devonport Devon Emma as 1841-1891
Immigration 28 November 1842 to New Plymouth, NZ
Edwin DUST born New Zealand 1845-1885
Arrival Port Jackson, (Sydney) NSW 15 October 1847
Marriage 1848 to Edward Geary Sydney
1855 death of Edward Geary
1858 marriage to William Brown
1885 Death at Ashfield NSW of Edwin DUST 1845-1885
1891 death of daughter Emma, Sydney NSW
1898 15 December, death at Nelson, NZ, of Agnes' sister, Elizabeth.
Cheers, JM