This is a very useful tip received from Olwyn Whitehouse a little while ago about how to get the best out of the Papers Past collection - using Google and the following research parameters, with "G. Griffith" as an example:
"G. Griffith" 1862 -"l=mi" site:http://paperspast.natlib.govt.nz
The -"l=mi" excludes results in the Maori language. I'm putting it here mainly so I
can find it myself, but others may find it useful too.