I Am Researching the Moore Family Who Moved from Hartland Devon to Hillston Nsw IN 1927

I have DOB's & Marriage dates of most of the 4 daug's & 5 sons but now the trail 's gone cold. George and Mary Grace were my Great Great Grandfathers brother any ideas. All I know is that Eric B 1916 passed over the farm to his son Weeri in 1983.