There’s no major contradiction in the use of those three names. UW would have her indexed under both names, since her HS and UH transcripts were under those names.
Her use of the name “Anna Obama” in phone records was probably aimed at avoiding her HS friends — remember, none of them were aware she was still in town until 1962, and the two she visited on Mercer Island in late August 1961 say they never knew she was attending UW back then.
As far as the racial real estate restrictions, it’s obvious that by 1961 that neighborhood was in decline, judging by how the house she was living in had been subdivided into apartments rented by college students. The restrictions might have been on the books, but it’s doubtful they were enforced. Besides, Stanley Ann was white. The landlord needn’t know, or care, what color the infant was, if he/she even knew there was a child living there. Landlords who rent to college students tend not to be very picky, as long as the rent is paid and the tenants don’t set the place on fire.
Yup. The old-timers I've talked to here tell me Capitol Hill was pretty much a mixed-race slum by the mid-1960's,
It didn't start to turn around until the 1980's.