Looking for Information About Hetherton IN County Tyrone Ireland

John Hetherton (1819 - 1887), aged 22, emigrated on board the 'Strathfieldsaye' and arrived at Port Phillip (Geelong) on the 30th August 1841 with Robert aged 2 & wife Sushannah (nee Harper).

He died in Healesville 6 Mar 1887. His immigration record states that he was born in Co Tyrone. But where?

I would love to correspond with anyone else who is researching the Hethertons.