character: Katherine Johnson
topic: Mathematician at NASA who calculated flight trajectories
grade: 2
subject: Science
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character: Margaret Hamilton
topic: Computer scientist who worked on Apollo missions
grade: 2
subject: Science
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character: Mary Jackson
topic: First African American woman engineer at NASA
grade: 2
subject: Science
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character: Dorothy Vaughan
topic: Mathematician and computer programmer at NASA
grade: 2
subject: Science
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