Don't give it a second thought. I throughly enjoyed reading about your adventure to the causeway, especially the four leaf clover. After rethinking my previous comment, I was told it was four houses for rental on the farmland that Adam once worked. But its good to hear that the causeway cottages are a friendly place to visit.
Helen bring along that four leaf clover and maybe it will bring you some good luck with your research.I am planning a return trip to Ireland myself mid week round about July in an effort to trace my family roots. Firstly I have to find out where in Londonderry they originated
Regards
Marilyn