Hi I found a record of her birth on Wikitree being May 24th 1897 at Bexhill. Her 2 sisters Ruth & Kathleen had 3 given names so I would think she probably had the same.
Sister Kathleen's birth is registered at Battle, Sussex in 1903.
In the 1901 census she is named Mytle, 1911 census she is named Nelley age 12.
She marries FRISBY at Grantham in 1917 and dies at Grantham in 1973.
Hope this helps
regards
Shirley
PS My niece lives at Kites Nest in Bexhill