Still no joy tracking William, though there are quite a few records of a William Wall being a naughty bloke around the right time, These records don't mention Chinese appearance though, which I assume being half Chinese descent he would still look Chinese. Sorry that's not being rascist, sometimes you need to put yourself in the mindset of people of the time. Even today someone of Asian appearance is described that way
We managed to get James' marriage certificate, James married ELLEN WOODS in 1904.
From that we found that his father Ah Khan Woll is now James Wall and his mother is Jane Wall, That James (not the Ah Khan, James) was previously married to CATH HAMILTON in 1889 but she has died (more on that in a moment). No issue from the marriage.
WE then found James' divorce deposition 1899 and found Cath Hamilton was in fact very much alive, she had moved out and taken residence with some seedy types in what is essentially a brothel. There are quite a few mentions of her being arrested for vagrancy and petty theft. She seems to be hanging around with Chinese which could suggest that she is also Asian looking or part Asian descent. She had custody of her and James' daughter Lily who was removed by the police for neglect. At one time when Lily was 9 an old Chinaman from Egerton took her to the doctor in Ballarat and they were noticed by the police, they were arrested and they went to court, Lily was examined by the Doctor and was still intact so the Chinaman Ah Tie was released. Lily was recommended by the court to go to "the schools" (reform school) but was released into the care of her father.
I think that Lily was probably very Asian appearance and that is why she was rescued by Ah Tie.
After this there is no mention of Lily.
Ah Kan Woll alias James Wall could still be around at Scarsedale after Jane dies in 1894, there is a mention of a James Henry Wall marrying an Ada Emily Kate Datson in 1900. But there are several James Walls in Ballarat around this time, even a policeman at Warrenheip.
PROV and BDM is playing hard to get and the Ballarat Cemetery search is completely off, so I am beating my head against a partly demolished brick wall at the moment.