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

Graeme Kenyon passes on recollections of his father, Clive Kenyon, as at September 2013. (Clive's, grandfather was James George Kenyon b.1861 whose sister, Florence Kenyon, married James William Oliver, son of Charles Oliver Oliver b.1843).
“Bill was a farmer and his farm was where the new Bethlehem shopping complex is now. He had one daughter, Peggy, and an adopted son, Jack who became a Presbyterian minister, but is with us no longer”.

Preferred name of Bill, place of birth and place and date of burial, from Cynthia Glover (nee Coleman), whose great-great-grandfather was William Samuel Allen b.1843. (William's sister, Martha Allen, married Charles Oliver, youngest son of James and Ruth Oliver).

Cynthia writes, “Wille bought his father’s farm (James William Oliver) with his soldiers grant on his return from World War Two”.

Year and country of marriage from search on New Zealand BDM website in February 2022:
1921/6343. Bride: Eva Christina Jensen. Groom: Willie Verner Oliver

Full date of marriage of 28 April 1921 from further searching in February 2022 on BDM Search by incrementally changing the date range for the marriage.