Annette, thank you so much for taking the time to give me all those helpful links.
I'm sorry that I wasn't more clear -- GreenBank, etc was in St. Helens, where Matthew went and we know married there Jan 1838. I'm trying to get that marriage record in hopes that it would give Matthew's father's name.
They were definitely Roman Catholic, as I have been able to locate baptismal records for the family through the years they stayed in England, as well as after they arrived in the USA.
I have no clue as to where in Ireland they were from, so I'm just going on the basis of where the surname was found in Ireland, and it seems to be in Northern Ireland, but in several counties.
Thanks again for your help.