omgosh, my brain must be turning to mush today. I don't have the 1841 census for them, I think I typed that without thinking--and yes, you're absolutely right about the timing of the family residing in Liverpool.
I have the family living in Liverpool in 1851 when her father, Francis, was working as a dock labourer. Though I WISH I could find travel records for them from Ireland (or just ANYthing that gave me the county in which they were born), Ann, the sister was born in Ireland around 1845, and Winifred was born in Liverpool in 1848, so my best guess is they came over right at the time of the famine.
And I suspect the duplicity of the Victorians, particularly where the poor were concerned, is what keeps them so fascinating to us today.
Thank you so much for your help!
Norah