Name, day/month of birthday “18th December”, estimated wedding month/year of “December 1960”, from Neville’s wife, Winsome Griffin, in an email dated 29 December 2023.

Place of marriage, found in December 2023 from:
https://winsomegriffin.com/Cone/HenryGuilford.html

Date of death advised by Winsome Griffin in an email dated 9 February 2024.

Obituary notice for Neville as published by The New Zealand Herald on 2 February 2024:
https://notices.nzherald.co.nz/nz/obituaries/nzher...obituary?id=54263029
GRIFFIN, Neville. It is with sorrow, Winsome and Lloyd announce the death of our husband and father Neville Griffin on 30th January 2024 at Tauranga Hospital, aged 89 years, the son of Clarence and Zena Griffin. In accordance with Neville's wishes, a private funeral was held at Pyes Pa, Tauranga.

Also published in the Bay of Plenty Times and the Taranaki Daily News on 2 February 2024:
https://www.legacy.com/nz/obituaries/bayofplentyti...obituary?id=54265000
https://deaths.taranakidailynews.co.nz/nz/obituari...obituary?id=54264758

Year of birth derived from age at death. Neville would have turned 89 years on 18th December 2023 therefore, born 1934.