the marriage record tells us she was born 1844 or earlier - as she is 21 or older in november 1865
the census gives her as 27 in 1861
so I would say born 1843 or early 1844...
mar qtr 1843 - mar qtr 1844 only shows one Ann Wilson b Liverpool
mar qtr 1844 WILSON Ann Liverpool 20 407
3 baptised in 1844 in Liverpool
Ann WILSON
17TH July St Peter - Joseph and Mary as parents
10th Sept St Peter - Joseph and Janet as parents
21st Sept St Catherines - Thomas and Elizabeth as parents ...
as Ann was married at St Peter - she was probably baptised there as well ??
sothat leaves 2 baptisms at St Peter - BOTH fathers are named Joseph ...so Anns father was probably a Joseph Wilson

?
did William and Ann have children names Mary or Janet ??...may point towards to her mothers name ?