Surname from from Carol Smith in an online message received 21 July 2020. Carol Smith is the x3 great granddaughter of Thomas Jones (ca1840-1917). The wife of Brian of nzolivers is also a Carol and is the great granddaughter of Thomas Jones (ca1840-1917).

No record of marriage could be found on the New Zealand BDM website as at August 2020.

First given name from wife’s headstone inscription from:
https://billiongraves.com/grave/VALERIE-OLMSTEAD/14244806
In Loving Memory Of
VALERIE OLMSTEAD
(nee GRAYDON)
19.2.1920 - 15.9.2010
Loved wife of JAMES
Mother of BRIAN, CHERYL, VALERIE & CHARLES
Loved grandmother and great grandmother.

Second given name, year and country of death, date of birth, from death search on New Zealand BDM website in August 2020:
1978/30091. Olmstead, James Maurice. Date of birth: 8 November 1919

Full date of death of 15 April 1978 from further searching in August 2020 on BDM Search by incrementally changing the date range for the death.