Very interesting video. As a young pre-teen I lived in St. Louis on 11th and 13th Streets not so far from the AB brewery. We rode streetcars to get to Cherokee and other areas for shopping. I believe Ferguson was one of these also, but it was further and always about 50/50 racially.
As for the whole segregation issue I once heard a preacher say that god intended for the races to be separated. That's why blacks were in far off areas like Africa. Apparently both her and her god were too stupid to know that mankind would invent boats and airplanes.