Even here, however, segregation persisted. Vaughan and her colleagues were placed in Langley’s ‘West Computing’ unit. White women computed on the east side. At the back of the Langley cafeteria, a white cardboard sign labeled COLORED COMPUTERS directed the West mathematicians to sit together at lunch rather than mingle. Eventually, “tiny firebrand” Miriam Mann stole the sign, and the table was left unlabelled.

Breaking barriers: the US space programme’s black women mathematicians : A view From the Bridge (via iamdanw)