For anyone that hasn’t read this, it is a good read from Pundita.
http://pundita.blogspot.com/2009/09/barack-obama-and-family-of-william.html
Barack Obamas Visit to the Other Ayers House
By Stephen Diamond, September 25, 2009
Barack Obama visited the house of Tom and Mary Ayers, parents of former Weather Underground activist turned education professor Bill Ayers, in the mid-1980s to thank the Ayers for their support of his education, according to Alan Hulton, the letter carrier who delivered mail to the Ayers Glen Ellyn home at that time. Glen Ellyn is a suburb of Chicago, southwest of the city.
Hulton spoke to King Harvest at length about his experience.
.....
Frank Marshall Davis is who sent Obama there (and likely fathered him).
Bunch of good info on this radio show:
http://www.khow.com/cc-common/podcast/single_page.html?podcast=fullshow_boyles