I accept it may well be outside the remit of the extremely helpful people on this site but I am hoping someone can help please. I have found a family of ancestors who were born in Ireland but appear in the 1881, 1891 and 1901 censuses in Liverpool. In the 1881c they are shown to be in "Dun Street PR House 99, Bootle Cum Linacre, Lancashire, England" which I assume is in fact, a Poor House (PR?) I have unsuccesfully so far, been able to find them prior to 1881 either in England or Ireland as there are no censuses for Ireland on the Ancestry site. Were there any censuses taken in Ireland and if so, where would I find them?

This family show up at an address in Liverpool in 1891 and a different address in 1901.

Thank you.