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National Museum of Nuclear Science & History

Crawford Greenewalt, Jr., was an archeologist and the son of Crawford Greenewalt, a chemical engineer who worked on the Manhattan Project and later become president of the DuPont Company. 

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Crawford Greenewalt, Jr., was an archeologist and the son of Crawford Greenewalt, a chemical engineer who worked on the Manhattan Project and later become president of the DuPont Company.

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After her brother was drafted, Jo-Ellen Iacovino and her family moved to Happy Valley, Tennessee to support the war effort.

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