hello Kevin, sorry just seeing your post today and wanted to thank you for all the cemetery suggestions. Was at Ardcarn in August 2019 but don't think I found the Regan(s) pertinent to my line. I also visited a few other cemeteries that were highly overgrown and many stones unreadable.
the drumsillagh my Regan family's homestead sat unpin the banks of Lough Eiden is very beautiful with the ruins of the home adjacent to the Lough. Coincidentally I've noted that an elder Regan went to live with close family in Cleaheen as I've noted on death cert.
also I've noted an abundance of unmarked stones in the cemetery as well, it's a shame.
would you happen to have your dna done or on gedmatch, maybe could be a match but nevertheless would love to exchange other information with you as two heads are better than one. Looking forward to hearing!
All the best
G.Anne