Seems to me he remembers ANNE/USA identified in the image sitting next to the Kenyan at the Nachmannofs. That this girl wasn't Stanley Ann Dunham, is obvious. She then shows up at the birth announcement address, as ANN S OBAMA...and if she was enrolled at the U of HI - FALL 1960 - she's the one he met in a 'RUSSIAN CLASS'
When the U of HI provided the enrollment details for 'Stanley Ann Dunham' they started with the ANN S OBAMA dates...because...doesn't EVERYONE KNOW (sarc) that Stanley Ann was married to the keyan?
That was the first indication OF THE BLENDING OF TWO WOMEN that I noticed.