First given name from birth search of son on New Zealand BDM website in November 2018:
1888/13533. Grant, Athol. Mother: Jane. Father: George

Maiden name, year and country of marriage from search on New Zealand BDM website in November 2018:
1886/390. Bride: Jane Proctor. Groom: George Grant

Full date of marriage of 3 February 1886 from further searching in November 2018 on BDM Search by incrementally changing the date range for the marriage.