Name, date of birth, date of death of 21 July 1924, from Muriel Leo’s (nee Oliver, 1917-1998) Family Tree.

Date of death confirmed from Brian (of nzolivers.com) trip to New Plymouth February 2009, the Headstone at St Mary’s Churchyard, New Plymouth, New Zealand:
Te Henui Cemetery, New Plymouth, New Zealand:
In Loving memory of
Ellen
Beloved wife of
John F Hooker
Who died 21st July 1924
Aged 65 Years.
Also their sons
Murray
Died 2nd December 1900,
Aged 20 Years
And
Leonard
Died 8th February 1902
Aged 24 Years
"Come all ye faithful".

Also
John Franklin Hooker
Died 7th May 1938. Aged 84 Years.
Also Fred Allies Hooker
Died 28th January 1967. Aged 83 Years.

Also
Anne Winifred Jenner
Hooker
Beloved wife of Fred Allies Hooker
Died 16th October 1971 Aged 81 Years

New day of death of 20 July 1924 from Michelle Robinson in an email dated 29 July 2022. Michelle writes that this is from the NZ BDM website and confirmed by an obituary in the Hawera Star of 21 July 1924. Michelle Robinson (nee Hughes) is the x3 great-granddaughter of John (b.1830) and Mary Jane (nee Julian) Oliver.

Result from death search on New Zealand BDM website in July 2022:
1924/3048. Hooker, Ellen. Died age 65Y

Full date of death of 20 July 1924 confirmed from further searching in July 2022 on BDM Search by incrementally changing the date range for the death.