In response to G.A. O'Connell - this is fascinating information that we have - as you indicate - not been able to find in any official history.
If you have more information about this that you would be willing to share please either post it here or email me at [email protected]
In the meantime we'll try and see if there is any reference in Archives NZ files.
It is obviously important that there is official recognition of this service, especially of the man who was killed in action.
Regards
Jamie Mackay
27 Apr 2008