TFPL. Oct 2019: In four out of five birth in the new GRO indices her surname was spelled EDMONDSON.  The fifth only was EDMUNSON.  So I have changed her maiden surname from the latter to the former.  Her newly ddiscovered marriage register entry, with her signature, agrees with this decision.
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There was another Sarah Kenrick whose death was registered in the fairly nearby Gt Boughton District in Q3 of 1852.  This date ties in better with the age of William’s yst son in 1861.  But this was the unmarried sister of her husband.

Curioser and curioser.  In 1871 at Ruabon hall, she pops up again at Wynn Hall....

Name Relation Condition Sex Age Birth Year Occupation  Where Born

KENRICK, Sarah Head W 59 1812 Smelter, landowner  Lancaster
KENRICK, John Son M, U 30 1841 Smelter  Ruabon
PRITCHARD, Emma Servant F 24 1847 Caernarvonshire
ROBERTS, Mary J Servant F 23 1848 Denbighshire

RG number: RG10 Piece: 5652 Folio: 61 Page: 9    

Registration District: Wrexham Sub District: Ruabon EnumerationDistrict: 5
Ecclesiastical Parish:

Civil Parish: Ruabon Municipal Borough:
Address: Wynn Hall, Ruabon
County: Denbighshire
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The above pair, Sarah and John, are in the 1861 census, living in Brymbo; he was a coal miner.

Similarly in 1881, with Sarah still born in Lancaster.  But a son Lel(?) was also there, a coal factor.  Both sons were born in Ruabon.

In 1891, no sign of anyone.

In 1901, Samuel Ll(ewelyn) Kenrick, solicitor, was there with a housekeeper, his Clerk as a boarder and a housemaid.

In 1911, Samuel Llewelyn was still there, married to Lilian Maud for 1.5 years but no children and with 2 servants.
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Her almost certain baptism, with a birth date:

First name(s)             Sarah
Last name                 Edmondson
Birth year                1811
Birth date                10 Dec 1811
Baptism year              1812
Baptism date              21 Feb 1812
Place                     Lancaster
Denomination              Independent
Father's first name(s)    James
Mother's first name(s)    Rachel
County                    Lancashire
Country                   England
The National Archives reference          TNA/RG/4/130
Description               LANCASHIRE: Lancaster, High Street (Independent) : Baptisms

In support of this is that she consistently gave Lancaster as her birth place and gave her father as James at marriage and in the 1851 census her mother Rachel was staying with her at Wynn Hall and in 1851 gave her age as 38, making her born in 1813.
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When did she die?

In 1861 her husband, with her mother Rachel still alive and living with him, reported himself to be a Widower.  But this was a transcription error: in fact he reported that he was married and the transcriber misunderstood the lack of a wife in the house.

By 1871 he had died and she was a widow, back in Wynn Hall.  She reports her age as 59 and was calculated to have been born in 1812; the true calulation for the 10 Dec 1811 birth was 69 so her report was correct.

In 1881 she and John were both still at Wynn Hall, she said she was 69 so born in fact in 1811, though the enumerator calculated this to be 1812.

In 1891 she was with her daughter Sarah Savage Minshall in Hampstead (though named 'Jenrick').

No sign of her in 1901.
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Her possible death index:

First name(s)     SARAH
Last name         KENRICK
Gender            Female
Birth year        1808
Age               78
Death quarter     2
Death year        1886
District          Holywell
County            Flintshire
Volume            11B
Page              175
Country           Wales
Record set        England & Wales Deaths 1837-2007

Or, if she had moved south, a better match with her known birth year:

Name                  Age at Death (in years):
KENRICK, SARAH        79  
GRO Reference: 1891  J Quarter in HAMPSTEAD  Volume 01A  Page 547

A will has been found for a Sarah Kenrick of Tunbridge Wells who died on 29th October 1888.  But I cannot identify the details with the family members mentioned in the will.  So I am excluding her from the identity of this Sarah Kenrick.

Finally, hopefully, a death that satisfies a few more criteria, and corresponds with what Graeme Wall has in his pedigree:

First name(s)    SARAH
Last name        KENRICK
Gender           Female
Birth year       1812
Age              79
Death quarter    2
Death year       1891
District         Hampstead
County           London
Volume           1A
Page             547
Country          England
Record set       England & Wales Deaths 1837-2007

The Deeath Duty Registers give a data of death as 20 June 1891.  But no will record found.  Nor a burial.  Nor any notice in papers on FindMyPast.
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Their marriage abstract:

First name(s)             William
Last name                 Kenrick
Name note              -
Marriage year             1836
Marriage date             21 Sep 1836
Marriage place            Deansgate, St John, Manchester
Spouse's first name(s)    Sarah
Spouse's last name        Edmonson
Residence                 Manchester, Lancashire, England
County                    Lancashire
Country                   England
Record set                England Marriages 1538-1973
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The image, with their signatures, adds;

He was of Ruabon, Denbighshire and was a Bank Proprietor.
She was a spinster of 'this town'
The marriage was by Licence
The celebrant was Thos Hutchinson, curate.
The witnesses were: John Whitington(?), Sarah Halpin(?), ???. Elizabeth Melch...(?)
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