Have you been in touch with Leila Maybury? http://archiver.rootsweb.ancestry.com/th/read/IRELAND/1997-0...
Leila is a descendant of a Timothy McCarthy with a son Florence out of Barnagowlane. I think Timothy died 18-Feb-1910 age 85, a widower. Son Florence was present at death.
I am related to Leila through Florence McCarthy's wife Ellen McCarthy. The "Killeenbeg" in Leila's message is probably Killeenleigh.
I don't have any more info on Barnagowlane or Florence's siblings. I have not heard from Leila in a while.