You obviously never saw this...
The Old Negro Space Program
https://www.youtube.com/watch?v=T6xJzAYYrX8
There were, in fact, almost no blacks in the space program. I never saw a black person at the Marshall Space Flight Center even as late as 1973,4. They weren't even in the badging office. I know mathematicians who worked in Von Braun's building on his staff; and, they tell me the story of the three black women who saved Apollo is a complete farce. If you think about it, where would they have gone to school in those times? Huntsville is in Alabama. Who would have hired black women into such a position?
Those times were just not good for blacks. In this age, very few blacks gravitate to the technologies. I have worked with only three black software engineers in my fifty year career. They were quite good at their job, and were not the typical angry black man. Now women are becoming more numerous in the technical work force.