People in UK pronounce DAVIES as Davis which is possibly the explanation for the slight change of spelling.
Perhaps this is his death?
1919, Victoria #15841
Wm Thos DAVIS, 64 (b abt 1855)
Death Place: Ballarat, Victoria
Father's name: Chas Thos DAVIS
Mother's name: Sarah SPENDLOW
Adding - this may be the birth registration of this man:
Victoria, 1855, #7725
William Thomas DAVIS
Born: Victoria
Parents: Chas Thos Davis, Sarah Ashby
Judith