Recap of census information.
1861 Patrick & William, lodgers in Warrington (Replies 8 & 9)
1871 Will & wife Bridget. (Reply 16)
A possibility for Patrick, lodging with a Finn family. (Reply 16)
Bridget, Pat's future wife + kids in workhouse, Bridget unmarried. (Reply 19)
1881 Patrick & Bridget, his wife, + William who was a widower. (Reply 13)
Are all the above definitely the correct Patrick, William and Bridgets?
When did Patrick and William die? Someone found a widowed Bridget on a later census, !891? I can't recall which Bridget.* Did Patrick or William appear on a census later than 1881?
*Added. 1891 census. Bridget, widow. (Reply 17)
Can we rule out Pat Foy in replies 2 & 6?