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National Museum of Nuclear Science & History

Nancy Greenewalt Frederick is the oldest daughter of Crawford Greenewalt, a chemical engineer who worked on the Manhattan Project and later become president of the DuPont Company. 

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David Fox

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David Fox lives in Providence, Rhode Island. He received a Ph.D. in mathematics and has worked on the military and civilian applications of computing, war gaming, simulations, and artificial intelligence.

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When she was fifteen, Mary (Whittlesey) Kennedy moved to Oak Ridge after her mother, Kleber Whittlesey, had secured a job as a secretary there.

Gale Young

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Gale Young was a research associate in theoretical studies at the University of Chicago Met Lab. Before joining the Manhattan Project in 1942, Young taught mathematics and physics at Olivet College.

Jean Tatlock

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Jean Tatlock (1914-1944) was an American psychiatrist and Communist Party member. Tatlock’s father was an English professor at the University of California, Berkeley.