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

Margaret Norman

University of California, Berkeley

Margaret Lawrence Norman is the eldest daughter of Nobel Prize-winning physicist Ernest O. Lawrence. She was born in Oakland, CA, and attended Stanford University.

Dimas Chavez

Los Alamos, NM

Dimas Chavez was a young child when he moved to Los Alamos with his family in August 1943. Chavez’s father, Trinidad, joined the Zia Company at Los Alamos, where he helped construct and maintain the laboratories and facilities there.

Vera Kistiakowsky

Tinian Island

Vera Kistiakowsky is an American physicist and the daughter of physical chemist George Kistiakowsky, who directed the Explosives Division at Los Alamos during the Manhattan Project and later served as President Dwight D.

John M. Sprecher

Wilmington, DE

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