I suspect she "lost" a few years over time.
1851
3 Court, Clement Street, St Martins Liverpool
Samuel Ho/arrocks 54 labourer bn Lancaster Dalton
Esther 57 bn Lancaster Knowsley
Mary 18
Jane 16
BETSY 12 all children bn Liverpool
Betsy Paterson 4 granddtr
Ellen PAtterson married dtr 24