Name, year and country of birth from search on New Zealand BDM website in June 2020:
1892/5817. Knauf, Herbert Hans. Mother: Johanna. Father: Hermann

Full date of birth of 23 February 1892 from further searching in June 2020 on BDM Search by incrementally changing the date range for the birth.

Year and country of marriage from search on New Zealand BDM website in March 2022:
1920/11175. Bride: Martha Emily Elizabeth Trim. Groom: Herbert Hans Knauf

Full date of marriage of 29 December 1920 from further searching in March 2022 on BDM Search by incrementally changing the date range for the marriage.