Further to Reply #17.
After trawling through records on the Mariners & Ships in Australian Waters database for the ss 'Fiona', the 'R Oliver' who appears on ships passenger/crew lists around 1907 is Ralph Oliver.
I also checked the Australian ER for 1913 St Leonards, Sydney, NSW which has a Ralph Oliver and Dorrillia Oliver living at 35 Edward street. Ralph is a Cook.
So I can now exclude this 'R Oliver'.
TPB