Looking for Munro of Christchurch South Island New Zealand

Very little info of my grandfather GEORGE Munro or his father DUNCAN.The family has lived most of their time around the Christchurch area, DUNCAN MUNRO married MARY HELEARN. GEORGE MUNRO married JANET WALKER FAMILTON. They had 5 boys and 1 girl.

Does anyone have any infomation on this family.

Did Duncan and Mary have children?

Have had some infomation from my uncle. He was the youngest son but has now passed away. Noone seems to know very much about the MUNRO side of the family.

The men seemed to be labourers, farmhands and cooks.

Any help would be appreciated. I'm over running into brick walls!!!

Thanks wendyhutch