Letitia Halpin

Any help on my ancestor Letitia Halpin would be most appreciated. She was born b/w 1819 and 1825, possibly in Ireland (although only one UK census lists her place of birth as Ireland. One says Scotland, and the others are in England). She married Benjamin Pickering in a Roman Catholic chapel in Cheshire in 1846. Her father is named as 'Edward Halpin', a labourer.

I'm at a loss to know where next to go, so any/all help and suggestions would be greatly appreciated.