Her baptism:

First name(s) Henrietta Mary
Last name Chester
Gender Female
Birth year 1835
Birth place -
Baptism year 1835
Baptism date 31 Dec 1835
Residence Bolney, Sussex, England
Place Bolney
County Sussex
Country England
Father's first name(s) Anthony
Father's last name Chester
Mother's first name(s) Henrietta
Mother's last name -
Record set England Births & Baptisms 1538-1975
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I think this is her in the 1841 census: it looks liker her parents were away and her maternal Grandmother Margaret, née Morison, Brown and aunt Margaret Ogilvie had come down to look after her:

First name(s) Last name Gender Age Birth year  Birth place

M Brown Female 75 1766 Scotland
M O Brown Female 50 1791 Scotland
H M Chester Female 5 1836 -
Eliza Burgess Female 25 1816 -
Elizabeth Bond Female 20 1821 -
Sarah Ayse Female 40 1801 -
Charles Burgess Male 25 1816 Kent
Elizabeth Ward Female 40 1801 -

Address and ref:
Street Neville Park
Parish or township Speldhurst
City or borough -
Town Tunbridge Wells
County Kent
Country England
Registration district Tonbridge
Archive reference HO107
Piece number 462
Book number 4
Folio number 8
Page number 9
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Not found in the 1851 census.
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This death is almost certainly of the H M Chester who was born in Italy and is not this Henrietta:

First name(s) HENRIETTA M
Last name CHESTER
Gender Female
Birth year 1834
Age 93
Death quarter 2
Death year 1927
District Bishops Stortford
County Hertfordshire
Volume 3A
Page 666
Country England
Record set England & Wales Deaths 1837-2007
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Did she marry?  Burke certainly recorded this in the landed Gentry of 1875:

First name(s) Henrietta Mary
Last name Chester
Age Full
Residence -
Marriage year 1861, 16 April
Parish St John the Baptist, Great Marlborough Street
Spouse's first name(s) Richard Purefoy
Spouse's last name Fitzgerald
Spouse's age Full
Spouse residence -
County Middlesex
Country England
Archive City of Westminster Archives Centre
Record set Westminster Marriages

And

First name(s) HENRIETTA MARY
Last name CHESTER
Marriage quarter 2
Marriage year 1861
MarriageFinder™ HENRIETTA MARY CHESTER married one of these people
Richard Purefoy Fitzgerald, George Shew Powell
District St. George Hanover Square
District number -
County London
Country England
Volume 1A
Page 366
Record set England & Wales Marriages 1837-2005
________________

The 1861 census was ten days before her wedding but she cannot be found anywhere in the census.
________________

By the 1871 census she had had 6 children:

First name(s) Last name Relationship Marital status  Gender  Age  Birth year  Occupation  Birth place

Henrietta Mary Fitz Gerald Wife - Female  35  1836  -  Sussex
Richard Purefoy Fitz Gerald Son - Male      8  1863  -  Buckinghamshire  
Geraldine Mary Fitz Gerald Daughter - Female   7  1864  -  Warwickshire
Mary Frances Purefoy Fitz Gerald Daughter - Female   6  1865  -  Warwickshire
Laura Purefoy Fitz Gerald Daughter - Female   5  1866  -  Warwickshire
Henry Purefoy Fitz Gerald Son - Male      3  1868  -  Hampshire
Catharine Purefoy Fitz Gerald Daughter - Female   0  1871  -  Hampshire
Adelaide Agnes Kentish Visitor - Male     54  1817  -  Belgium
Sarah Hughes Servant - Female  42  1829  -  Shropshire
Eliza Phillippa Lugar Servant - Female  36  1835  -  Essex
Mary Ann Godfry Servant - Female  28  1843  -  Yorkshire
Maria Thomas Servant - Female  23  1848  -  Northamptonshire
Emma Adams Servant - Female  20  1851  -  Hampshire
Mary Ann Court Servant - Female  21  1850  -  Middlesex
Cecilia Hayes Servant - Female  19  1852  -  Yorkshire
Charles Meachem Servant - Male     16  1855  -  Hampshire

Address & Ref:
Street North Hall
Parish Preston Candover
County Hampshire
Country England
Registration district Basingstoke
Archive reference RG10
Piece number 1237
Folio 94
Page 5

RG10, Piece 1237, Folio 94, p. 5
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In 1881 there was one more child, Mabel.  The elder ones had all flown the nest or were away at boarding schools:

First name(s) Last name Relationship Marital status  Gender  Age  Birth year  Occupation  Birth place

Richard Purefoy Fitzgerald Head Married Male 45 1836  Magistrate R?  Berkshire
Henrietta M Fitzgerald Wife Married Female 45  1836  -  Sussex
Henry P Fitzgerald Son Single Male 13 1868  Scholar  Preston Candover, Hampshire
Katharine Fitzgerald Daughter Single Female  10  1871  Scholar  Preston Candover, Hampshire
Mabel Fitzgerald Daughter Single Female  8  1873  Scholar  Preston Candover, Hampshire
John Lovel Servant Married Male 28  1853  Butler (Domestic)  Jersey, Channel Islands
Mary Ann Eckett Servant Single Female  28  1853  Ladies Maid (Domestic)  Hampshire
Elizabeth Pointer ervant Single Female  24  1857  House Maid (Domestic)  Whitchurch, Hampshire
Ellen Westbrook Servant Single Female  18  1863  Kitchen Maid (Domestic)  Lower Wield, Hampshire
Alfred Munday Servant Single Male 25  1856  Coachman (Domestic)  Stoke Charity, Hampshire
Henry Hurst Servant Single Male 17  1864  Groom (Domestic)  Romsey, Hampshire

Address & Ref:
House name North Hall
Parish Preston Candover
County Hampshire
Country England
Registration district Basingstoke
Archive reference RG11
Piece number 1257
Folio 94
Page 8

RG11, Piece 1257, folio 94, p. 8
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Her probate index:

FITZ GERALD Henrietts Mary of North Hall Basingstoke Hants widow died 15 May 1895  Probate London to Richard Purefoy FitzGerald lieutenant royal navy and the reverend Henry Purefoy FitzGerald clerk.  Effects £1448 5s 10d.

The executors look strongly like her sons.
________________

Their church marriage transcript:

First name(s)           Richard Purefoy
Last name               Fitzgerald
Age                     Full
Marriage year           1861
Parish                  St John the Baptist, Great Marlborough Street
Spouse's first name(s)  Henrietta Mary
Spouse's last name      Chester
Spouse's age            Full
County                  Middlesex
Country                 England
Archive                 City of Westminster Archives Centre
Record set              Westminster Marriages

The image of the register adds:

DateL            16 Apr 1861
His status:      bachelor
His job:         Lieutenant in Royal Navy
His Abode:       Brook Street
His father:      Thomas FitzGerald, Esquiew
Her status:      spinster
Her abode:       Leamington Warwick
Her father:      Anthony Chester Clerk, M.A.
Witnesses:       V M Chester, Walter Talbot, Chandos S Stanhope, A A Kentish, > > Bainbridge
Marriage after:  Licence
________________

Their marriage index:

First name(s)     RICHARD PUREFOY
Last name         FITZGERALD
Marriage quarter  2
Marriage year     1861
MarriageFinder    RICHARD PUREFOY FITZGERALD married one of these people
                  Maria Elizabeth Chisholm, Henrietta Mary Chester
District          St. George Hanover Square
County            London
Country           England
Volume            1A
Page              366
Record set        England & Wales Marriages 1837-2005
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