Information from David Eric Lloyd born 15 Feb 1943, including place of death - Miss Aiken’s Private Hospital.
Last name provided by Rachel Frances Oliver born 31 August 1940
Date of marriage from Kathleen (Kathy) Brooks (nee Oliver) from Birth Death Marriage website.

From Papers Past found in June 2018:
Wanganui Chronicle, 29 March 1901, Page 2
Wanganui Chronicle, 30 March 1901, Page 2
DEATH.
OLIVER—On the 28th inst at Wilson St Wanganui, Beatrice, Alice, Maud, dearly beloved wife of Louis Oliver; aged 23 years. New Plymouth and 1 Waipawa, papers please copy.
FUNERAL NOTICE.
Friends are informed that the funeral will leave the Wanganui Hospital on SATURDAY, the 30th inst, at 3.30 p.m. - John Trussell, Undertaker, Victoria Avenue.

Buried at Heads Road Cemetery Wanganui, Row 23 RH 101 feet from centre aisle,
Grave of:
Loving Memory of
Beatrice Alice Maud
The beloved wife of
Louis Oliver
Died 28th March 1901
Aged 22 years
Beatrice Alice was buried 30 March 1901. Her still born baby is in same row, 20 feet further along.

Date of marriage confirmed

Result from marriage search on New Zealand BDM website in October 2018:
1900/2854. Bride: Beatrice Alice Maud Whyman. Groom: Louis Oliver

Full date of marriage of 23 May 1900 confirmed by Brian of nzolivers from search in October 2018 on BDM Search by incrementally changing the date range for the marriage.