According to the 1851 census, Ann's birth year was circa 1802:

1851
Lancashire, Liverpool, St Thomas, district 1v, image 14 (Ancestry)
HO 107 2181 853 57
Norfolk St 6 Court 6
John Rowlands head mar 64 porter b LP
Ann wife 49 b IOM
Ellen dau unm 17 charwoman b LP
Susan dau 11 scholar b LP
John Watson (no relationship given) unm 30 light porter b LP

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This marriage from the IGI is a patron submission.

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ANN RATCLIFFE Pedigree
Female Family

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Event(s):
Birth:
Christening:
Death:
Burial:

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Marriages:
Spouse: JOHN ROWLAND Family
Marriage: 29 JAN 1828 St Peters, Liverpool, Lancashire, England

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Messages:
Record submitted by a member of the LDS Church. The source films cannot be sent to family history centers and have limited access at the Family History Library. A family group record for this family may be in the Family Group Record Collection; Archive Section. (See the Family History Library Catalog for the film number.) These records are alphabetical by name of the father or husband.

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Jean C