anonymous, you need to provide at least the information that you have for others to assist you. If you provide LESS than all that you know, then you should expect us to have LESS success than you have had.
Where did he come from, did he emigrate alone, how late in the 1800's, did he go to the North or South Island, are you aware of any descendants - all this would help.
If this person has a profile, then set it to have a public bio and populate it with everything you know that is relevant - and edit your question to link to it ! There are lots of people here that are keen to help but they need to know at least what you do.
In the mean time the online NZ BMD is a good place to start...