I’ve always wondered especially about the “Gold Coast” on upper 16th street. In my time, that has always been held up as the iconic early 20th century neighborhood for the black upper class, the professional and business elites. Those folks certainly were very prominent in the history of the area, but I wonder what the dynamics were when those homes were built. The area has always been very nice.
Back in the 50s, white doctors and lawyers used some of those houses for their practices, and I imagine the embassies drew a lot of international relations wonks of the day to live there. That's about all I know of it.