The show and tell, organised by the Taumarere branch of the 28th Māori Battalion Te Taitokerau Association, was a first step to gauge what material was available for inclusion in the book. The association's other branches were expected to follow suit with their own sessions.
''It's been a long time coming so we're getting ourselves organised,'' Tana said.
''Before she passed my mother was always saying, 'Hurry up and get it started'. In our own whānau I remember my grandfather's memorabilia, his hat, his boots, his maps — it's been dispersed around the family but as time goes on it will be lost, along with their stories.''
Saturday's speakers will include:
■ The surviving children of Lieutenant Colonel Sir James Henare and Lady Rose, Bernard, Phoebe and Charlotte;
■ The Harawira whānau, who will read from the diary of Te Kao-born Kahi Harawira, a soldier in World War I and the battalion's first padre in World War II;
■ The A Company Academy boys of Te Kāpehu Whetū in Whangārei will give a presentation about Kohukohu-born Lieutenant Colonel Fred Baker;
■ Helene Leaf will talk about Captain Harding Leaf from Whirinaki, who was killed in action in Crete and awarded the Military Cross;
■ Donna Awatere-Huata will speak about Lt Colonel Pita Awatere, whose maternal grandfather was from Ngāti Hine.
The book is not connected with a Māori Battalion Museum currently under construction at the Waitangi Treaty Grounds and due to open in February 2020.
Participants are requested to bring a koha or a plate for lunch.
The Māori Battalion was organised along tribal lines with the soldiers of A Company drawn from Ngāpuhi, Ngāti Whātua and other northern iwi. They were nicknamed the Gum Diggers.
Selwyn Clarke, the last surviving member of A Company, died in Kaitaia on Monday. He was aged 91.