You have probably found your answer now, but just in case you are still looking, check in on John Simpson McLean, (McLean-4342).
Not added are his parents - William Henry McLean and his wife Janet Stewart ?.
I suspect his wife was born in Tasmania. (A bit more research needed for that).
I also think the whole family left New Zealand after 1910, as I have found none of them in the Death Index.
If you wish to take over these profiles you are most welcome.