First given name from the New Zealand Electoral Roll - Wairarapa General Roll 1946, found in April 2021:
Hayes, Charlotte, South Carterton, married.
Hayes, George Humphrey, South Carterton, farmer.

Maiden name, year and country of marriage from search on New Zealand BDM website in April 2021:
1919/1437. Bride: Charlotte Nagel. Groom: George Humphrey Hayes

Full date of marriage of 14 January 1919 from further searching in April 2021 on BDM Search by incrementally changing the date range for the marriage.

Two children found born before in April 1921 in BDM Search:
1919/7915. Hayes, John. Mother: Charlotte. Father: George Humphrey
1920/11634. Hayes. Margaret Mary. Mother: Charlotte. Father: George Humphrey

Date and place of birth and death found in “Find a Grave” in April 2021:
Charlotte (Nagel) Hayes
BIRTH: 12 Aug 1899, Eketahuna, Tararua District, Manawatu-Wanganui, New Zealand
DEATH: 23 Jan 1988 (aged 88), Greytown, South Wairarapa District, New Zealand
BURIAL: Greytown Cemetery, Greytown, South Wairarapa District, New Zealand
https://www.findagrave.com/memorial/219233633/charlotte-hayes

Parent’s names and siblings from the entry in the above “Find a Grave” in April 2021:
10th of 17 children of Wilhelm John Nagel (1861-1942) & Wilhelmine Gesine Schnell (1865-1943). Married George Humphrey Hayes 14 Jan 1919 in Eketahuna and had 11 children
1919 - 2010 John 'Jack Hayes
1920 - Margaret Mary 'Peggy' Hayes
1923 - Charlotte Georgina Hayes
1923 - 2004 George 'Bunt' Hayes
1925 - 1992 Kathleen Grace 'Kit' Hayes
1926 - 2018 William Edward 'Bill' Hayes
1928 - 2010 Ellen Wilhelmina 'Nell' Hayes
1929 - Robert 'Bob' Hayes
1931 - Florence Edith 'Biddy' Hayes
1932 - 1996 Giles Francis Hayes
1933 - Sarah Elizabeth Hayes

Result from birth search on New Zealand BDM website in April 2021:
1899/17130. Nagel, Charlottie. Mother: Wilhelmina. Father: William
[Note - different spelling of given name]?

Full date of birth of 12 August 1899 confirmed from further searching in April 2021 on BDM Search by incrementally changing the date range for the birth.

Result from death search on New Zealand BDM website in April 2021:
1988/38151. Hayes, Charlotte. Date of birth: 12 August 1899

Full date of death of 23 January 1988 confirmed from further searching in April 2021 on BDM Search by incrementally changing the date range for the death.

Given name and maiden name confirmed, from New Zealand Marriage Record for son George, and added here in May 2021.

Place of marriage, occupation as Domestic Duties, age “19” which is correct, place of birth given as “Rongomai” [North-East of Eketahuna, Wairarapa], place of residence at the time as Rongomai, name of parents confirmed, witnesses of Richard Charles Gyde and Arthur Hutton, from Marriage Certificate for Charlotte Nagel and George Humphrey Hayes and entered here in June 2021.