Story Structure — 5 Plot Phases
Hidden Labor at Langley
The West Area women perform segregated calculations while remaining excluded from the purpose and recognition of their work. New assignments expose both professional opportunity and institutional discrimination.
Key Events
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West Area Computing Unit — Black women perform segregated mathematical calculations without knowing their purpose. Characters: Dorothy Vaughan, Mary Jackson, Vivian Mitchell
Location: Langley Research Center
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Transfer To Space Task Group — Mitchell assigns a skilled mathematician to Harrison's space group. Characters: Vivian Mitchell, Al Harrison, Paul Stafford
Location: Langley Research Center
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Heat Shield Flaw Found — Mary identifies a flaw in the capsule heat-shield design. Characters: Mary Jackson, Karl Zielinski
Location: Space Capsule Heat Shield Team
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Engineering Barriers Revealed — Mary learns that extra courses block her engineering application. Characters: Mary Jackson, Vivian Mitchell
Location: NASA administrative office
Education Against Barriers
Mary discovers that an engineering career requires access to segregated night classes. She takes the requirement to court and secures permission to continue her education.
Key Events
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Court Petition Filed — Mary asks the judge for access to all-white night classes. Characters: Mary Jackson, Judge
Location: Courtroom
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Night Classes Approved — The judge grants Mary permission to attend the required classes. Characters: Mary Jackson, Judge
Location: Courtroom
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Astronauts Visit Langley — Mercury astronauts visit Langley, and Glenn greets the West Area women. Characters: Dorothy Vaughan, Mary Jackson, John Glenn
Location: Langley Research Center
Recognition Under Pressure
The space race intensifies after the Soviet launch, increasing the value of precise calculations. Workplace segregation and denied authorship force a direct confrontation with NASA's hierarchy.
Key Events
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Redacted Equation Solved — A complex equation from redacted documents is solved under launch pressure. Characters: Al Harrison, Paul Stafford
Location: Space Task Group office
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Restroom Discrimination Exposed — Harrison learns that the mathematician walks far to use a colored restroom. Characters: Al Harrison, Paul Stafford
Location: Space Task Group office
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Restroom Signs Destroyed — Harrison removes the colored restroom signs and ends restroom segregation. Characters: Al Harrison
Location: Langley Research Center restroom area
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High-Level Meetings Opened — Harrison allows the mathematician into meetings about the capsule re-entry point. Characters: Al Harrison, Paul Stafford
Location: Mission planning room
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Authorship Denied — Stafford removes the computer's name and claims sole report credit. Characters: Paul Stafford, Al Harrison
Location: Space Task Group office
Programming the Future
The IBM 7090 threatens the human computers' jobs. Dorothy learns Fortran, trains her coworkers, and converts technological disruption into collective promotion.
Key Events
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IBM Threat Discovered — Dorothy learns that NASA's IBM computer threatens human computing jobs. Characters: Dorothy Vaughan, Vivian Mitchell
Location: West Area Computing Unit
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Fortran Book Taken — Dorothy secretly takes a Fortran book from the whites-only library section. Characters: Dorothy Vaughan
Location: NASA library
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Programming Skills Shared — Dorothy teaches herself programming and prepares her West Area coworkers. Characters: Dorothy Vaughan, Mary Jackson
Location: West Area Computing Unit
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IBM Machine Started — Dorothy successfully starts the IBM computer and proves her programming ability. Characters: Dorothy Vaughan, Vivian Mitchell
Location: NASA computer room
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Programming Department Promotion — Dorothy becomes supervisor after requiring transfers for thirty coworkers. Characters: Dorothy Vaughan, Vivian Mitchell
Location: NASA programming department
The Numbers Hold
A discrepancy threatens Glenn's launch, requiring trusted manual calculations and rapid decisions in mission control. The capsule lands safely, followed by recognition of the women's lasting achievements.
Key Events
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Launch Calculations Challenged — Discrepancies appear in IBM calculations before Glenn's launch. Characters: Al Harrison, John Glenn, Paul Stafford
Location: Mission Control
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Manual Coordinates Confirmed — The mathematician checks the landing coordinates, and Harrison admits her into control. Characters: Al Harrison, John Glenn
Location: Mission Control
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Friendship 7 Lands Safely — Glenn lands safely after three orbits with the retro-rocket helping secure the heat shield. Characters: Al Harrison, John Glenn, Paul Stafford
Location: Mission Control
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NASA Careers Recognized — The epilogue records promotions, engineering achievements, coauthorship, and later honors. Characters: Dorothy Vaughan, Mary Jackson, Paul Stafford
Location: NASA Langley Research Center