Thanks Anne, much appreciated. Unfortunately not the correct people. I am after an Australian brother and sister, CJD Gray and his sister Susan Gray. Both born near Crookwell in NSW and went to NZ together. They worked at Millerton in 1904.
Have checked out the entire index of Gray in the FamilySearch NZ passenger list and no luck. We are on the right track becuase they did go over to NZ as paid passengers on a coal ship
Cheers and thanks Gerry D