The female mathematicians’ job security wasn’t immediately threatened by the machines, but Dorothy Vaughan perceived that mastering the machine would be the key to long-term career stability. When Langley sponsored a series of computation courses to be held after work and on weekends, Dorothy wasted no time enrolling. She encouraged the women in her group to do the same. “Integration is going to come,” she told her employees. The blurring of the color lines could put her and her reports in a position to qualify for the desirable jobs that were sure to open for people who were experts in
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