March 11 1914 NZ Gazette
Examination centre Invercargill Passed Class D
(There are four classes A, B, C, D
Register details in NZ Gazettes:
June 29 1917 Certificate D, Consecutive number on grading list 95, Public School
June 21 1918 Certificate D, Consecutive number on grading list 94, Public School
April 22 1919 Certificate D, Consecutive number on grading list 88, Public School
Do you have a big library nearby, you can search NZ Gazettes and look at the register each year
The Treasury in Thames has a fairly full set, ??Auckland library does and other main centres
So that you can fill the gaps..maybe later years give more info
BYe
Althea