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

Richard H. Groves

Washington, DC

General Richard Groves was a cadet at West Point during World War II, getting ready to ship out for the invasion of Japan.

Sheila Rowan

Oak Ridge, TN

After her brother was drafted, Sheila Rowan and her family moved to Happy Valley, Tennessee to support the war effort.

Dorothy Ritter

Oak Ridge, TN

Dorothy Ritter is the daughter of Francis Oley, who worked on the Manhattan Project for the Kellex Corporation.

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.