Name date and place of birth and death, place of burial, from:
https://www.findagrave.com/memorial/119426695/may-ethel_garfield-mckoy

Year and country of marriage from search on New Zealand BDM website in January 2019:
1914/8608. Bride: May Ethel Garfield Mawson. Groom: Archie Victor McKoy

Full date of marriage of 27 May 1914 from further searching in January 2019 on BDM Search by incrementally changing the date range for the marriage.

Result from birth search on New Zealand BDM website in January 2019:
1893/11986. Mawson, May Ethel Garfield. Mother: Mary Ann. Father: Joseph

Full date of birth of 9 May 1893 confirmed from further searching in January 2019 on BDM Search by incrementally changing the date range for the birth.