Tony,
I have been told that there are no Conlons left at Ballybarney but the old forge still exists, owned by a Dowling. Interestingly at Ballybarney in the Primary of Valuation of 1852 there lived a Michael Dowling who shared a separate parcel of land with Ann Conlon who leased the forge suggesting a relationship between the Conlons and the Dowlings. Only other clue, in Crookstown Churchyard an inscription reads. In Memory of the Conlon Family of Lipstown. Erected by their niece, Margaret Lynch. The townland of Lipstown abuts Ballybarney.
I'll let you know if anything new emerges.
J.T.A.