As you haven't indicated any dates or time frame, it is a hard to find arrivals.
I assume the surname is 'Wilks' ?
There is the following from Victorian Public State Recordshttp://www.access.prov.vic.gov.au/public/PROVguides/PROVguid...
of the following family arriving from British Port on the Persian in 1852. May be Joseph's wife was also known as ?Ann
WILKS ANN 39 DEC 1852 PERSIAN B 023 009
WILKS CAROLINE 1 DEC 1852 PERSIAN B 023 009
WILKS CATHARINE 15 DEC 1852 PERSIAN B 023 009
WILKS JOSEPH 13 DEC 1852 PERSIAN B 023 009
WILKS JOSEPH 39 DEC 1852 PERSIAN B 023 009
WILKS LAVINA 4 DEC 1852 PERSIAN B 023 009
From Victorian records Cd found
Given Names: Joseph Josephs
Spouse Surname/Father: Jos
Spouse Gvn Names/Mother: Sarah WILKS
Death Place: STAWELL
Reg Number: 11061R
This Joseph Josephs Wilks, born c. 1793
so probably not the above listed family.