Gulbransen's in New Zealand

My grandmother was Margaret Matilda Gulbransen born in 1896 at Matakana Dargaville. Her father was Carl Gustav Gulbransen born around 1870 we believe. Mother Annie ? Barres. They or their parents were from Norway. Margaret married Clarence Wright in 1915 and they had 3 sons and 2 daughters. My father Ronald Wright was the youngest and is the only one still alive and living in Ruakaka, Whangarei. Margaret had 4 brothers and 3 sisters as far as I have been able to find out. Brothers were Carl, Gustav, Hans & Gordon and sisters were Sarah, Ada & Annie. I'm hoping to find any relatives as I have not been able to find out very much about my grandmothers parents or ancestors. Regards Glenis