Kia Ora Patrick and Erana. Ripeka Cosgrove was also my great-grandmother. Her daughter (Rehutai) is my grandmother. My father is Koha. Patrick can you tell us the name of your grandfather please?
Also I know Ripeka used to live in Tikitiki, the house in which she lived still stands there today. (It is adjacent to the site of the Waiapu farmers, which has recently been demolished).