I have an interest in them as well. Samuel Low of Clonerril, spelled multiple ways and actually Clonearl, and several places right around there, in Kings County east of Tullamore, kept deeding land to this family. I was just Googling to find out who they were. In fact, if you'd private message me a way to contact you, I could use whatever info you have collected.
Incidentally, there is something on them on a roll of film at LDS. 101011. Items 1-3 are Dunne family of Brittas, Queen's County, extracts and copies of documents, wills, deeds, leases, pedigrees, etc. relating to the family. Now, I had this roll of film and that is the great bucn of stuff in which I found the deed in which Samuel Low of Clonerril sold part of his father's estate at Knockicoster, proving my suspicion that he was that man's son. I didn't realize the signficance of this family at that time, however, and the roll of film has gone back. It was generally of the Upton Papers. Has alot of stuff. Item 6 si Dunne famly of Brittas as well.