Seeking to Contact the following ladies of Sri Lankan Heritage

I am trying to trace the whereabouts of the following ladies in Australia. Are you able to advise me the procedure in doing so.

Anna. Spurling Silva

Kathleen. Spurling Mc Heyzer

They are daughters of late Hermon .Spurling  Chistoffelsz of Monte Cristo Estate, Ratnapura.

Perhaps , please ask anyone with info to contact me on 0403125853.

Appreciate very much if you  could please guide me.

Kind regards,

Ananda Jayasinghe