Name, date and place of birth, date and place of death, added here in April 2022, and from a post written by Brian Brandon about 'James George Cox' on "The First Four Ships" website:
http://www.firstfourships.co.nz/pics/othrppl.php?table=others&id=56
Brian Brandon is a x2 great-grandson of James George Cox, and being descendant through James' son, James George Coleridge Cox.
Brian of nzolivers is also a x2 great-grandson of James George Cox, but descendant through James' daughter Elizabeth Annie Cox.

Result from birth search on New Zealand BDM website in April 2022:
1856/4092. Cox, John Duke. Mother: Louisa. Father: James George

Full date of birth of 10 July 1856 confirmed from further searching in April 2022 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 April 2022:
1881/2967. Bride: Charlotte Agnes Payne. Groom: John Duke Cox

Full date of marriage of 20 February 1881 from further searching in April 2022 on BDM Search by incrementally changing the date range for the marriage.

Result from death search on New Zealand BDM website in April 2022:
1928/2315. Cox, John Duke. Died age 72Y

Full date of death of 5 May 1928 confirmed from further searching in April 2022 on BDM Search by incrementally changing the date range for the death.

Family photo added her in October 2024 on porch for family gathering at John (1856-1928) and Charlotte (nee Payne) Cox's house in Blenheim:
Back Row (L to R):
Seymour Arnold Cox (b. 1904)
Gordon Stanley Albert Rakena Cox (1902 - 1992)
Payne, Charlotte Agnes 1859-1924 married Cox
Queenie Elizabeth Cox (1888 - 1952)
Front Row (L to R):
John Duke Cox (1856 - 1928),
Ivy Magdalene Cox (1888 - 1975)
Brian Vincent Cox (1916 - 1976)
Vincent James George Cox (1882 - 1971)