Surname only from Muriel Leo’s (nee Oliver, 1917-1998) Family Tree.

First two given names, year and country of marriage from search on New Zealand BDM website in October 2018:
1897/1674. Bride: Jessie Oliver McCoy. Groom: Charles Edward Crocker

Full date of marriage of 22 July 1897 from further searching in October 2018 on BDM Search by incrementally changing the date range for the marriage.

No record of birth could be found on the New Zealand BDM website in October 2018. Perhaps born outside of New Zealand?

Year and country of death, estimated year of birth, from death search on New Zealand BDM website in October 2018:
1955/33292. Crocker, Charles Edward, died age 83Y [Therefore born circa 1872]

Full date of death of 15 June 1955 from further searching in October 2018 on BDM Search by incrementally changing the date range for the death.