Sounds like Loius Gates has been busy. Do pray tell, what was the name of this shoe-maker from Moneygall, and how was he related to the slave named Punch or Bunch a decendant of whom is was Ralph Bunche:
Fred Bunche is believed to have had Bunch and other ancestors who were established as free people of color in Virginia before the American Revolution. The Bunch/Bunche surname was extremely rare. In 2012 researchers published evidence showing that Bunch male descendants can be traced through historical records and y-DNA analysis to John Punch, an African indentured servant sentenced to life service in 1640, and considered to be the first slave in Virginia.[7] President Barack Obama is also believed to be among Bunch's many descendants, through his mother's family.[7] Several generations of the Bunch men, free people of color, married white women from the British Isles, who were free.[8]
Was it maybe through Loretta Fuddy's sister who married a Bunch and that made Loretta a relative of zero...I have to admit my forte isn't genealogy but it seems to me that any Irish in zero's ancestry is more likely to have been inherited from his grandfather Mr Little, who looks like a little leprachaun.
The Irish immigrant from Moneygall was Falmouth Kearney.
http://blogs.reuters.com/talesfromthetrail/2012/03/20/no-doubts-as-to-obamas-irish-ancestry-now/