Hi all, I have read the new postings about how to get started doing research if you don't know which county your ancestors came from. While it is hard, it is not impossible. I can only give you information that I used to find my ancestors who came to the US, so if yours went somewhere else, I can't give you any info. First, make sure that you have looked them up in EVERY US census. Each census covered different questions, and you may get more information based on another census record. If you can't find them, try different spellings (this goes for any search anywhere! Spellings varied greatly!). Once you have all the census records you can find, try the Ellis Island database if you think that they may have immigrated through there. In addition, try getting their naturalization records, death certificates (often included country/county info) or obituaries (often says where they came from). I am adding some of the sites that I found most useful in my search. I have been quite successful, and found not only that my relatives came from Sligo (O'Hara, Burke, Connolly) but also Mayo (Burdish, Gavin). Last but not least, try doing multiple Google searches. use different names, spellings, names with counties, names with words like birth, death or census, etc. I have stumbled across all kinds of records that way. Good luck. Nancy http://www.ellisisland.org/ http://scripts.ireland.com/ancestor/browse/links/counties/ http://www.genuki.org.uk/big/irl/ http://home.att.net/~wee-monster/naturalizationrecords.html http://www.nationalarchives.ie/genealogy/begin.htm http://freepages.genealogy.rootsweb.com/~deesegenes/index.html