Re; your James ( watchmaker ) , I presume you have searched the carlow church records, ( free search ) it shows a lot of his children baptised in CoI carlow.
Previously mentoned Luke is buried in the Quaker graveyard in Newgarden Carlow, my gg grandfather and two other brothers and two wives are buried in Ballitore Quaker graveyard ( have photos ). great grandfather John, describes himself as Weselyian/Methodist in census, GGGG Grandfather John and Esther buried Fennagh CoI. who I think could be a joint ancestor. very mixed up in choice of churches. if there is a way of swapping emails, I can share some photos and links.