Mr. Nolan,I ran across your discussion, if you can call it that, with a Mr. Windham.I have been doing genealogy research for forty-five years and concentrated first on my maiden name "Nolen" to resarch. I have visited the Archives in Dublin, Ireland and have obtained, for my library, a three volume set of The History Of Ireland, by Geoffrey Keating, and the two volume set of Irish Pedigrees, by John O'Hart. These are considered the two prime sources for Irish Research. In addition, I have numerous books on the history of Ireland.One of my treasures is an original copy of Art MacMurrogh Kavanagh, a sketch of his life and times. I am not sure of the publishing date, but it sold for 1 penny.As a result of my research I compiled for my family "The Ancient and Auspicious Clan O'Nolan, Lords of Carlow and Princes of Forth." My nephew recently provided my information along with his sample, for DNA testing and it confirmed that our lineage goes back to Eremon,the high king of Ireland. The O'Nolans held their territories in Ireland for over a thousand years.Is was not until the sixteenth century that the clan was scattered througout Ireland.There were, indeed, Nolens in the counties you mentioned and I have records to prove it.