First given name and two initials of “Elizabeth F M” from the New Zealand Electoral Roll - Western Hutt Main Roll 1975, found in October 2023:
Boyland, Elizabeth F M, 27 Oswald Cres N Lands. Tea/L
Boyland, Frank W, 27 Oswald Cres N Lands. Storeman
Boyland, Geoffrey Albert, 27 Oswald Crescent, Newlands. Shop Asst
Boyland, Graham Frank, 27 Oswald Crescent, Newlands. Shop Asst

Maiden name, year and place of marriage from the England and Wales Civil Marriage records found in October 2023:
Groom: Frank W Boyland
Bride: Elizabeth F M Wilson
Registration Quarter: Oct-Nov-Dec 1950
Registration district: Brentwood, Essex

Second and third given names, date of death, place of burial, photo of headstone, from Find a Grave website found in October 2023:
https://www.findagrave.com/memorial/146232535/elizabeth-florence_may-boyland
Elizabeth Florence May Boyland
Death: 6 Oct 1995, New Zealand
Burial: Taitā Lawn Cemetery, Naenae, Lower Hutt, New Zealand
Plot: Block 10 Row J Plot 21.

Date of birth from the 1939 England and Wales Register collected by enumerators on the 29 September 1939:
Address: Haberyow [?], Brentwood, Essex, England
Sidney James Wilson, Born 6 June 1886, Married, General Attendant at Cable & Wireless Station
Minnie May Wilson, Born 1 June 1886, Married, Unpaid Domestic Duties
Elizabeth Florence Wilson, Born 8 May 1928

[NOTE: The 1939 Register was collected by enumerators on the 29 September 1939 shortly after Britain declared war. The Register was a critical tool in coordinating the war effort and used to issue National Identity Cards and organise ration books. And from 1948, as the basis for the National Health Service Register].

Date of birth confirmed, from death search on New Zealand BDM website in October 2023:
1995/51516. Boyland, Elizabeth Florence May. Date of birth: 8 May 1928

Full date of death of 6 October 1995 confirmed from further searching in October 2023 on BDM Search by incrementally changing the date range for the death.