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

Judith Lynn Parkhurst

Oak Ridge, TN

Judith Lynn Parkhurst was born on March 18, 1934, in Shelbyville, Indiana. Judith had two brothers, James born in 1941, and David born at Oak Ridge in 1947.

Herbert “Herb” W. Depke

Hanford, WA

Herb Depke arrived in Hanford in 1943 after his father was transferred by the DuPont Company to work as an expediter during the Manhattan Project.

Kevin McKibbin

Santa Fe, NM

Kevin McKibbin was the son of Dorothy McKibbin, known by many as the “Gatekeeper to Los Alamos”. McKibbin was born in 1930 in St.

Dorothy Vanderford

Los Alamos, NM

Dorothy Vanderford (1973- ) is the granddaughter of J. Robert Oppenheimer. Although Vanderford never met her grandfather, she knows the family narrative well and her father, Peter Oppenheimer, was a child during the Oppenheimer trial.