Tommy Collins is descended from Collinses in Loughcrot and from Lissangle.
My Collinses came out of Lissane, also out of Adrigole.
We do not know if our Collinses are related and we are both unaware of a Timothy Collins in our direct ancestral lines. That name is key, as from what I have seen so far in tithe applotments, Timothy occurs as a first name more frequently than even a name like John. With the ubiquity of men named Tighe around the time of the Elizabethan pardons, I have suspected that the *lack* of Timothys in our lines could mean something. There are 246 people named Collins in my own family database and the number continues to grow.
The Hourihanes I know about are from Cloghane, Bauravilla, and Tooreen. One of the Bauravilla ones, Peadar, was a well-known nationalist, teacher, and writer. He wrote columns on local history in the Southern Star for many years. Peadar might be descended from both Bauravilla and Cloghane Hourihanes. The name sometimes gets changed as Howard.