It seems quite likely we are related & I would be very pleased to learn more about the family.
I was born in Ch-Ch NZ as was my father. His mother is shown in some records as a daughter of Peter Hansen Boisen but not via an established marriage.She had a brother who was called Edward William Boisen who I can't find any helpful info on but do have an NZ bdm death rec in his name on the way (ordered it last week).
I live in Sydney & am visiting relatives in NZ (N.I. Akl) over Christmas.