"Ancestry.com, the world's largest online resource for family history, is now able to confirm that U.S. presidential hopeful Barack Obama's Irish ancestors originated in Moneygall and neighboring Shinrone in County Offaly, Ireland."

"Researchers initially thought that Obama's third great-grandfather, Falmouth Kearney, who sailed from Ireland to New York in 1850 at 19-years-old, was the only member of the family to emigrate. However, records reveal that other Kearney family members had in fact been in America since the 1790s."

more here, including links to images of records