Roger:
Thank you for your reply. I must have been in quite a hurry - a couple of corrections to my post.
John Burke married Mary Nevin in Ireland - their son, Francis Burke, is my ancestor that left Ireland around 1850-1852, ending up in Pennsylvania. It was his child's baptismal record that indicates Edward Joyce as a sponsor.(while in Pennsylvania). Both Francis Burke and Edward Joyce (and their immediate families) moved on to the same town in Iowa.
So, it is possible that the parents of Francis, John and Mary(Nevin) Burke, remained in Ireland and could be listed on the Griffith's Valuation.
Since the Burke's and Joyce's both relocated to Pennsylvania and later to Iowa, (this would be my Francis Burke and Edward Joyce), as well as the bapitsmal record, I'm assuming there is some connection. There could be a chance that their families were acquainted or related in Ireland.
I don't have much information about Francis Burke - just his death certificate and his obituary, both indicating birth in Co. Galway and the names of his parents, John and Mary (Nevin) Burke.
Noting the Joyce name as a baptismal sponsor led me to do a bit of research on that family.
I'm just trying to make some connection - my goal is to confirm the exact birthplace of Francis.
In regard to the Nevin family, my reference to Leitrim was the Barony of Leitrim, Union Loughrea, Parish of Ballynakill. The only thing in common with the Burke/Joyce/Nevin records from Griffith's is the Parish of Ballynakill.
Being unfamiliar with these designations, I don't know if that commonality would make the Nevin family neighbors of the Burke family - possibly fellow parishioners at the same Roman Catholic church?
Again,thank you for the reply and forgive my hasty post!