I have a (brief) letter written by L H Davey to William Wilkins regarding a berth for a John Williams on what I can only deduce is the Amelia Thompson for the settlement of New Plymouth, written, it seems, just before they left.
More details here - http://www.stampboards.com/viewtopic.php?f=10&t=22503&am...
- and lower down where I transcribe the letter itself.
I was initially more interested in the penny black stamp, until I googled the name ...
Happy to provide a scan.
Hope this thread is still active.