Looking for Smith Nsw Tasmaina

doris gwedoline smith was living launceston tasmaina,in the 70ts,she had a kieth raymond smith at same place of living st john street lton,not sure thou keith smith might been born nsw .aus,kieth had 1 daughter 2 sons daughter living hobart tas one son queensland aus,im looking for more family members he suposed to of had 4 other childern plz ask me for further info.any one have those names in there family ??