School records are often very complete, many NZSG genealogy branches have indexed records..so they are worth contactng
Otherwises archives can be searched online to see what records are available eg in the Palmerston North area
They can give details such as birthdate, address, guardiaan details and school successes..classes
Some are laid out differently..and you may get a column tick of each class they were in etc...
There is also school correspondence, board minutes etc..depending what sort of info you are after
Also remmeber school reunion books, highschool years books etc...
Bye
althea