If you add Stanley to Ann D and then add unham Obama, you also get 'Obama, Stanley Ann Dunham' on the so-called transcript from the U of WA, and the letter from the U of HI which states 'Stanley Ann Dunham' enrolled from the Fall of 1960. It gives you the Ann S Obama from the Polk directory in 1961, and of course the Stanley Ann who attended high school at Mercer Island... Furthermore it might also throw some light on the Miss Dun (or Dan)...whose name was truncated on the 'adoption memo' which was dated April 1961. We might just be looking at the mother and child he wrote home about and her name was Ann S with a surname that commenced with D...
Maybe if we stare at it long enough, someone will have an epiphany.