First two given names from the New Zealand Electoral Roll - Patea General Roll 1954, found in January 2024:
Bayly, Mildred Hilda, Kai Iwi, married
Bayly, Philip Henry Patrick, Kai Iwi, farmer
[NOTE: Mildred did not appear with Philip in the 1946 Roll. Therefore perhaps married sometime between 1949 and 1954, say circa 1952].

New Zealand Electoral Roll - Tauranga Main Roll 2010, found in January 2024:
Bayly, Mildred Hilda, 113 Waratah Street, Matua, Housewife
Bayly, Philip Henry Patrick, 113 Waratah Street, Matua, Retired

Maiden name, date of death, from Obituary in the New Zealand Herald found online in January 2024:
https://notices.nzherald.co.nz/nz/obituaries/nzher...obituary?id=42223949
BAYLY, Mildred Hilda (nee Matthews). Dearly loved wife of the late Phillip. This wonderful and dearly loved mother of Christopher, Michael, John, Roger, Andrew and Paul: cherished mother in law and loving grandma to 12 passed away on Saturday 1st May, aged 94 years. A celebration of her amazing life will take place at 2pm 10th May at Bracu Restaurant Pavillon, 49 Main Road, Bombay SH1.
Published by The New Zealand Herald on May 5, 2021.

Obituary in the Bay of Plenty Times found online in January 2024:
https://www.legacy.com/nz/obituaries/bayofplentyti...obituary?id=42223986
BAYLY, Mildred Hilda. nee Matthews. Dearly loved wife of the late Phillip. This wonderful and dearly loved mother of Christopher, Michael, John, Roger, Andrew and Paul: cherished mother in law and loving grandma to 12 passed away on Saturday 1st May, aged 94 years. A celebration of her amazing life will take place at 2pm 10th May at Bracu Restaurant Pavilion, 49 Main Road, Bombay SH1.
Published by BayofPlentyTimes.co.nz on May 5, 2021.

Date of birth, place of burial, from Find a Grave website found in January 2024:
Name: Mildred Hilda Bayly
Birth Date: 30 Oct 1926
Death Date: 1 May 2021 (aged 94)
Burial: Waikumete Cemetery & Crematorium, Glen Eden, Auckland Council, Auckland, New Zealand