I think she may be in Woodborough 1841, it's not far from Lambley, as female servant
HO107; Piece: 867 Folio: 6; Page: 5
George Beardall 10
William Foples 14
Frances Neep 14
but they are all in the household of William Duke, all born in Notts.
Also found this whilst looking
Death
Name: Wm Geo Neep
Death Place: Ballarat, Victoria
Age: 61
Father's Name: Wm
Mother's name: Frances Neep
Registration Year: 1885
Registration Place: Victoria
Registration Number: 4090
Estimated Birth Year: abt 1824
Did see that there was a William mentioned in Southwell in the newspaper and found so looked in Notts
Yorkshire, Archbishop of York Marriage licences index, 1613-1839 Transcription
First name William Neep
Age 21
Birth year 1801
Residence parish Kirby Bellars
Residence county Leicestershire
Licence year 1822
Licence date 17 Oct 1822
Intended marriage place Epperstone PC, Nottinghamshire
Spouse's first name(s) Frances
Spouse's last name Neep
Spouse's age 21
Spouse's parish Epperstone
Spouse's county Nottinghamshire
I didn't see a marriage in Leicester
There's one William in Southwell...tanner according to the paper but there are a few William Neep's of various ages, might be worth a look but hope this might go some way in helping