This entry is from People Australia
According to his death certificate, William Treadaway was a sawyer, like his father, and lived for about 53 years in New South Wales and 43 years in Victoria.
He was married twice – to Mary Ann Pearce in New South Wales in 1839 (his name was registered in the BDM index as Trethaway) and then to Elizabeth Murray in Victoria (in the BDM as Tretheway). He had no children.
'Treadaway, William (1811–1898)', People Australia, National Centre of Biography, Australian National University, http://labouraustralia.anu.edu.au/biography/treadaway-william-24044/text32882, accessed 24 April 2017.