Obama was born on August 4, 1961, at the Kapiolani Medical Center in Honolulu, Hawaii, to Barack Obama, Sr., of Nyangoma-Kogelo, Siaya District, Kenya, and Ann Dunham, of Wichita, Kansas, who was largely descended from pre-revolutionary British settlers to the United States, although her great-great-grandfather Falmouth Kearney emigrated from Ireland in the mid 19th century.
So says Wiki.
Probably all a conspiracy.