I can find no evidence that the woman Roy Robert WALTERS married in 1918 and for whom he claimed to be arranging repatriation to Australia in 1921, ever arrived in Australia. She was Phyllis Queenie WILSON, as mentioned.
Does anyone else see her?
When he married in 1927 to Mary Elizabeth WHITE, he was possibly still legally married to Phyllis.
He married as DODD and later it seems reverted to WALTERS, though Mary Elizabeth seemed to retain her DODD married name.
As mentioned, the couple were living in Tasmania at 281 Charles street Launceston and he was Roy Robert WALTERS while she was Mary ELizabeth DODD.
They were there from 1943 to 1949 together. Prior to that seem to be in NSW as listed
There is one Mary Elizabeth DODD in Launceston in 1954, but the address is different 102 St John Street. Another male live there too. A truck driver.
As noted, Roy Robert was in Melbourne in 1954.
Sue
EDIT
The text is poor on the 1954 Tas E Roll digitisation.
The truck driver DODD may have been at 192 St John Street.