Hartland Family IN New Zealand

Hi

Having visited New Zealand on three occasions now, and a family reunion in Huntly, Bendigo City, in Australia, I know that there are some Hartland descendants in South Island, married name of Joseph I think, but, would really wish to make contact with any other descendants of our forebears derived from the Hartland family. Please advise if you are interested as at my age, time is at a premium....