Seeking Relatives of Martin Glendale Hansen Last Known Whereabouts New Zealand Born Early 1900s

Seeking information and family links to Martin Glendale Hansen. He is the son of Adolf Frederick Hansen and grandson to Frederick Verne Hansen. Adolf's sister was 'Emeline Hansen, who is my great grandmother. I am seeking Martin Glendale hansen because he gave my uncle (al) the birth certificate of Adolf and Verne(brother to Adolf). Martin was also generous enough to gift my uncle with pictures of adolf and Frederick Verne hansen.