kahihurae on Family Tree Circles

My grandmothers name is Molly Kahu REWETI from Reporoa, she married my grandfather Kahi (Gus)HURAE. At the moment I only know of 3 brothers and 2 sisters of hers. I want to know where the REWETI's are originally from. The brothers names I know of are, Kutz, Tommy Ra, Dalla and the sisters are Sophie I think married a RICKETTE,and a twin sister to my nan married a HINES, hopefully that's the right way of spelling it.