If I've found the right family in 1851 - John Brooks, wife Elizabeth and 4 children in Norwich - this states that Elizabeth was bc.1825/6 Norwich.
FreeReg shows:
Elizabeth Bennett b.29/6/1825, bp.3/7/1825 St. James with Pockthorpe, Norwich, dau. of Henry Bennett, Collar and Harness Maker, and wife Elizabeth Smith.
Other children were James 1818, Henry Batriabas 1820, Sophia 1822 and Mary 1827.
A Collar and Harness Maker often operated out of a public house yard and Henry may have progress to being a Publican this way. However, I'm surprised that you know her father was living at St. Clements, Norwich at the time of the marriage. Normally the only details of the father on a marriage certificate are name and occupation.
Annette