A masterful, revealing account of 4 African American women prepared to serve as computers for what became NASA told by an able writer who has clearly recorded the significant truth behind the historic part of the American space story played out at Langley AFB in Virginia and the contributions of these women to a broader understanding of race in America and in space, at once tragic, yet significant to the nobility of the women who proved themselves at great cost, to be 1st class citizens of the USA.