Leave the door open for Ann S Obama being a foreign student perhaps renting a room at the Pratt/Dunham residence, while Stanley Ann Dunham was already in Chicago living with her maternal uncle who was deputy director of the university library. Allow for the possibility that Ann S Obama shows up at the Seattle address in time for the entry in the 1961 Polk as Anna Obama.
At that point in time, all they have in common is the name ANN. As in Stanley ANN and perhaps ANN in Hawaii and ANNA in Seattle.
Anna Obama is the woman the Kenyan wrote home about that he had married. She had a son he also wrote home about - (according to aunt Zeituni, who later lived with the kenyan and Ruth in Nairobi and cared for their children)...ANN/ANNA had a child babysat by Mary in January 1961.
And if Stanley Ann Dunham did visit Susan Botkin/Blake late in August 1961 with a very young baby, both Anna Obama and her child were living at the Capitol Hill address. AT THE SAME TIME.
Cindy Pratt told David Maraniss that Stanley Ann/Ann S. Obama lived at the Kalanianaole Highway address prior to the pregnancy. Cindy described a “makeshift room,” in the hallway outside the Dunham’s room.
Having read Cindy’s comments, as transcribed by Maraniss, I can’t picture her as some kind of super-liar/conspiracy-enabler. She came across as artlessly honest, imo.