Behan of Coolboy

Hi I was wondering if there was anyone from Carnew parish connected with my great great grandparents who lived in Coolboy... Thomas and Ellen(nee Purcell) Behan their children where baptised in Coolafancy .... Thomas father was Patrick Behan and his mother was Mary Foster .... Ellens father was James Purcell Thomas was born circa 1844 in Ballykelly.