My Grandfather Edward (Ted) and yours were quite close.
My mum talks about the holidays they had in Helensville with Uncle Clem and Aunty Hazel's family. I have also met Clem and Hazel (when I was younger). Out of all Grandad's siblings, Clem was the only one I met.
Mum is close to one of Clems daughters, Irene.
Yes the book is called Seven lives on Salt River. There is also a book called, Images for Albertland. GGDad was the "King of the Kaipara". He was also a tour guide for visitors etc and took the PM on fishing trips!!!!