Maybe this is a possible scenario:-

For reference, from FODFHT

Record_ID: 116671
Entry_Number: 431
Year: 1861
Month: Mar
Day: 19
Parents_Surname: NEWELL
Child_Forenames: Elizabeth Charlotte
Fathers_Forenames: [not stated]
Mothers_Forenames: Mary Ann
Mothers_Surname:
Residence: East Dean
Occupation: Labourers daughter
Officiating_Minister: W[illia]m D Hall
Event: Baptism
Memoranda:
Notes:
Register_Reference: 523
Page_Number: 54
Parish_Chapel: Lea

From GR 1871 Census, Paradise Buildings, Holmer, Hereford

Thomas DAVIES, Head, Mar, 45, Labourer, b. Glostershire, East Dean
Ann, Wife, Mar, 49, Glostershire, Winchcombe
William, Son, Un, 14, Scholar, Glostershire, East Dean,
Elizabeth NEWELL, Grand daur, Un, 10, Scholar, Glostershire, East Dean

On the face of it (and neglecting complications such as step-children) Elizabeth NEWELL would have to be the child of a daughter of Thomas DAVIES. So perhaps Mary Ann NEWELL was actually Mary Ann DAVIS when the child was born?

From GR 1861 Census, East Dean, Holy Trinity

Thomas DAVIS, Head, Mar, 33, Stone Quarrier, b. East Dean, Glos,
Ann, Wife, Mar, 37, Winchcombe
Mary Ann , Daughter, Un, 19,East Dean, Glos.
Christopher Thos, Son, Un, 10, East Dean, Glos.
James, Son, Un, 7, East Dean, Glos
William, Son, Un, 4, East Dean, Glos
Elizabeth, Daughter, 2m, East Dean, Glos.

Since the name NEWELL was taken up perhaps Mary Ann did eventually marry a William NEWELL. This is a good candidate,

GR General Register

First Name MARY A
Last Name DAVIES
Gender Female
Year 1866
Spouse
Image Quarter 1
Country England
County Staffordshire
District DUDLEY
District Number
Registry Number
Volume 6C
Page 92
Line Number 246
Entry Number
Mary A Davies married one of the people below:
William NEWELL
Edward WHEELER