Name from a birth record found by Michelle Robinson and advised to Brian of nzolivers in an email dated 29 July 2022. Michelle wrote, "on BDM there is a birth record for Elizabeth Oliver, she is not mentioned on John and Mary Oliver's page". "The fathers name is recorded as John". Michelle asks, "Do you know if she was part of this family"?

Michelle Robinson (nee Hughes) is the x3 great-granddaughter of John (b.1830) and Mary Jane (nee Julian) Oliver.

A further search on the New Zealand BDM website shows a birth record, and six months later, a record of death:

Year of registration and country of birth from search on New Zealand BDM website in July 2022:
1860/6004. Oliver, Elizabeth. Mother: Mary Jane. Father: John

Full date of birth of 23 December 1859 from further searching in July 2022 on BDM Search by incrementally changing the date range for the birth.
1860/6004. Oliver, Elizabeth. Mother: Mary Jane. Father: John

Year of death registration and country of death, from death search on New Zealand BDM website in July 2022:
1860/1631. Oliver, Elizabeth. Died age 6M [Matches - born circa December 1859/January 1860]

Full date of death of 9 June 1860 from further searching in July 2022 on BDM Search by incrementally changing the date range for the death.