Hi Mathew,
Thank you for your suggestion.
Sorry my bad for lack of information. Bexley, NSW Australia is where they lived.
Some records from sites MYHeritage etc, have a date of 1979 when he died but as I dont have full membership, I am unable to contact these people to find out any further information. As for a DNA test, I was adopted at birth to Joyce (Cox) Newey, his daughter.