WWI plus all the racism, including re-segregation (https://en.wikipedia.org/wiki/Woodrow_Wilson_and_race#Segregating_the_federal_bureaucracy https://en.wikipedi

WWI plus all the racism, including re-segregation (https://en.wikipedia.org/wiki/Woodrow_Wilson_and_race#Segregating_the_federal_bureaucracy https://en.wikipedia.org/wiki/Woodrow_Wilson_and_race#Segreg...)