Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Nancy Greenewalt Frederick

Child of Manhattan Project VeteranWilmington, DE

Family Member of Manhattan Project Veteran
Nancy Greenewalt Frederick Listen to Nancy Greenewalt Frederick’s Oral History on Voices of the Manhattan Project

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

John M. Sprecher

Wilmington, DE

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

Peter Oppenheimer

Princeton, NJ

Peter Oppenheimer is a carpenter, and the son of J. Robert Oppenheimer. Early Life Peter was born in 1941 in California, and moved with his parents to Los Alamos when his father became the course director of Los Alamos [National] Laboratory.

Charles Oppenheimer

Los Alamos, NM

Charles Oppenheimer (1975- ) is the grandson of J. Robert Oppenheimer. Although Charles Oppenheimer never met his grandfather, he is well versed in the family history.

Crawford Greenewalt, Jr.

Wilmington, DE

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.