Here are a few articles that shed some light on Obama's ancestry
Kenyan Leader Odinga Is Obama's Cousin
Kenyan opposition leader Raila Odinga has said he is a cousin of US presidential hopeful Barack Obama.
Mr Odinga told the BBC's The World Today that Senator Obama's father was his maternal uncle.
Mr Obama's father - a Kenyan also called Barack - met and married his American mother when they were students at the university of Hawaii.
MORE:
http://news.bbc.co.uk/go/pr/fr/-/2/hi/africa/7176683.stm
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And on his mother's side:
Ancestry.com Uncovers Irish Roots Of Barack “O’Bama”
Senator’s 3rd Great-Grandfather Born in Ireland, Immigrated to U.S. in 1850; Historical Documents on Ancestry.com Reveal Light-Hearted Side of America’s Irish Heritage
PROVO, Utah, March 12 /PRNewswire-USNewswire/ — Ancestry.com, the world’s largest online resource for family history which recently discovered Al Sharpton’s shocking connection to Strom Thurmond, revealed today that presidential hopeful Barack Obama has Irish branches in his family tree. More than a century and a half ago, 19-year-old Falmouth Kearney, Obama’s third great-grandfather, sailed from Ireland, landing in New York harbor on March 20, 1850.
Settling initially in Ohio among Irish relatives [click on the image to enlarge his 1860 census enumeration], Falmouth married, had eight children, and eventually moved to Indiana. Three of Falmouth’s daughters married three brothers with the last name Dunham. Obama’s mother is descended from one of these couples — her birth name was Dunham.
Falmouth was among the thousands of Irish immigrating to America to escape the late 1840s potato famine in Ireland. By 1860, New York City had the largest Irish population in the world — a quarter of its residents had been born in Ireland.
http://blogs.ancestry.com/circle/?p=1151
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And This:
Obama, Dick Cheney And President Bush All Related By Bloodline -
It sure would be an awkward family reunion. But, believe it or not, Barack Obama is related to both President Bush and Vice President Dick Cheney.
OK, distantly related: Obama and Bush are 11th cousins.
Barack Obama is distantly related to Vice President Dick Cheney.
That’s because they share the same great-great-great-great-great-great-great-great-great-great grandparents — Samuel Hinckley and Sarah Soole Hinckley of 17th century Massachusetts
That means Obama and former President George Herbert Walker Bush are 10th cousins once removed.
MORE:
http://usaelectionupdate.com/blog/obama-dick-cheney-and-president-bush-all-related-by-bloodline/
More detailed information is available with a free registration at http://www.ancestry.com