Nell when I was in Ireland in 2009 I visited the Immigration Museum and Heritage Centre at Cobh (pronounced Cove) outside Cork. Cobh used to be called Queenstown. Cobh was the largest immigration port from Ireland. It is where the mass migration of people left from after the potato famine to the USA and the world. It was the last port of call of the Titanic. When I find the literature about it I will let you know, as enquiries could be made about all the people who left from there and it is where most people left from. I'm not sure if it was a paid site or not.