Name, date of death, from “Descendants of William Kendall" family tree dated 9 December 1992. Source appears to be Lyane Marguerite Kendall (1947-2010) (nee Hunter) of Hobsonville, Auckland. Added here in January 2025.

Second given name, diffrent spelling of maiden name, year and country of marriage from search on New Zealand BDM website in January 2025:
1929/2583. Bride: Grace Miriam Nankivell. Groom: Wilfred John Friedrich

Full date of marriage of 8 May 1929 from further searching in January 2025 on BDM Search by incrementally changing the date range for the marriage.

Year and country of birth from search on New Zealand BDM website in January 2025:
1906/9411. Nankivell, Grace Miriann. Mother: Mary Jane. Father: William

Full date of birth of 19 March 1906 from further searching in January 2025 on BDM Search by incrementally changing the date range for the birth.

Country of death, different day of birth, from death search on New Zealand BDM website in January 2025:
1988/54196. Friedrich, Grace Miriam. Date of birth: 17 March 1906

Full date of death of 28 September 1988 confirmed from further searching in January 2025 on BDM Search by incrementally changing the date range for the death.