Initial of “H” from entry for son in New Zealand WWI 1917 Army roll found in July 2020:
52964 Lance-Corpl. Curry, Frederick John, farmer, Next of Kin: Mrs H. Curry (mother), Woodville

Full first given name from birth search of son on New Zealand BDM website in July 2020:
1888/620. Curry, Frederick John. Mother: Harriet. Father: James

Maiden name, year and country of marriage from search on New Zealand BDM website in July 2020:
1876/1731. Bride: Harriett Williams. Groom: James Curry

Full date of marriage of 5 July 1876 from further searching in July 2020 on BDM Search by incrementally changing the date range for the marriage.