I've have been researching the US State Department records at the US National Archives and found registration documents from the years 1907 to 1928. These documents were filed by Americans citizens with the US Consulates at Dublin, Cork and Belfast when they traveled to Ireland to visit their aged parents or for a variety of reasons. The information includes the townland place of birth and connects them to their location in the US. I have transcribed the key info and posted it to a web site at http://sites.google.com/site/irishgleanings/ Use the search function of the web browser to locate names and places. If you don't find your ancestor listed search for their brothers, sisters, aunts, uncles or cousins. Some of these people seem to have returned to Ireland for their permanent residence so their descendants may live in Ireland today. I uploaded a sample document for the Quinn family registration - use the links on the left column to see the documents - the family picture is on page 2. Hope this helps your search. Regards, Sheila