Compton Longburn Palmerston North Nz

Looking for a man called possibly John Compton who worked at the Longburn Freezing Works 1913-1920.
Lived with my grandmother Eva Budd/Verchild and had 2 children. A son and daughter
born 1914 and 1915. Would appreciate any information. Does anyone know where to find details of
the Freezing Works employment records?