Nuclear Museum Logo
Nuclear Museum Logo

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. 

Related Profiles

Jack Keen

Hanford, WA

Jack Keen is the son of Lester Orlan Keen, an engineering draftsman at Hanford during the Manhattan Project.

Mary Kennedy

Oak Ridge, TN

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

David Fox

Manhattan, NY

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.

John M. Sprecher

Wilmington, DE

John M. Sprecher was a chemical engineer. During the Manhattan Project, he worked for DuPont in Wilmington, DE.