To h or not to h when spelling W(h)anganui is the question.
I’ll leave the answer to Poneke and move off on a tangent because the discussion reminds me of many a one I had with my father.
He was from Scotland and was forever telling me to differentiate between which and witch when I spoke. When he said the former you could hear the h, when I said it often as not you couldn’t.
I take it from discussion on W(h)anganui that Maori from that area pronounce wh with a breathy h as Dad did, as distinct from those further north who pronounce it more like an f.
That in turn reminds me of a discussion brought up in a celebrity debate about the difference between Maori in the north who use ng and those in the south who use k so down here it’s Aoraki but across the strait it’s Aorangi.
The debater (Jim Hopkins or Garrick Tremain, I think) then applied this to English with a convoluted sentence in which strong became strok, wrong became wrok and dong changed to dok before concluding that sometimes it was better to use the northern pronunciation because you could express your ire without causing offence by telling those annoying you to get funged.