Wigan Genealogy

I've my Horan family in the 1861 census for Wigan. They have a strange spelling- more like Hourihane, but I'm sure they are right because Margaret and Rose were definitely sisters. Rose married James Green and Margaret married Thomas Farrimond. I have the family in 1861 living at 54 Barrack Yard, All Saints, Wigan all born in Ireland: John Horan, head, aged 60 Agricultural labourer Alice, wife, aged 52 Children: Patrick, 27, soldier Mary, 22, labourer in cotton mill Jane or Ann, 20 labourer in cotton mill Rose, 18, labourer in cotton mill John, 17, Ag. Lab. Michael, 15, labourer in cotton mill Margaret, 12, labourer in cotton mill I have been unable so far to find them in the 1851 census, but would appreciate any advice. I am descended from Margaret.