Her baptism transcript:

Name Maria Costar Gould
Gender Female
Christening Date 17 Feb 1812
Christening Place Sherborne, Dorset, England
Birth Date 29 Jul 1811
Father's Name Samuel Gould
Mother's Name Susan
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She was with her parents in the 1841 census.

I could not find her or her husband in the 1851 census.  But in 1861 there they were on a large farm and with children, with her first child born when she was 37:

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

James Harding Head Married Male 60 1801  Farmer Of 590 Acres Employing 14 Labourers & 7 Boy  Dorset
Maria Coster Harding Wife Married Female 49 1812  Farmers Wife  Sherbourne, Dorset
Alfred Coster Harding Son - Male 13 1848  Scholar  Piddlehinton, Dorset
Rosa Mary Harding Daughter - Female 12 1849  Scholar  Piddlehinton, Dorset
Francis Herbert Harding Son - Male 9 1852  Scholar  Piddlehinton, Dorset
Elizabeth Spicer Servant Unmarried Female  16  1845  House Servant  Leicestershire
Ann Burry Servant Unmarried Female  67  1794  House Servant  Loughton, Devon0
James Balls Servant Unmarried Male   25  1836  House Servant  Dorset

Census ref:  RG09
Piece number 1355
Folio number 55
Page number 12
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Her death index:

First name(s) MARIA COSTER
Last name HARDING
Gender Female
Birth day -
Birth month -
Birth year -
Age -
Death quarter 1
Death year 1862
District DORCHESTER
County Dorset
Volume 5A
Page 249
Country England
Record set England & Wales deaths 1837-2007
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Their marriage index:

First name(s) MARIA COSTER
Last name GOULD
Marriage quarter 2
Marriage year 1845
Registration month -
MarriageFinder™ MARIA COSTER GOULD married one of these people
JAMES JUSTINS, JAMES HARDING, JOHN WHITE, CHARLES HODGES
District SHERBORNE
District number -
County Dorset
Country England
Volume 8
Page 159
Record set England & Wales marriages 1837-2008
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Their probable marriage licence from the Dean of Salisbury:

First name(s) Maria Coster
Last name Gould
Name note -
Age 21
Marriage year 1845
Marriage date 19 Jun 1845
Marriage place Dean Of Salisbury
Spouse's first name(s) James
Spouse's last name Harding
Spouse's age 21
Residence Dorset, England
County Dorset
Country England
Record set England Marriages 1538-1973
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