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