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 “Peggy” Dickson

Oak Ridge, TN

Peggy Dickson moved to Oak Ridge in the fall of 1944, when she was 14 years old. Her father, Charles Russell Dickson, Sr.

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.

Elberta Lowdermilk Honstein

Los Alamos, NM

Elberta Honstein (née Lowdermilk) was the daughter of Elbert Lowdermilk, the contractor whose construction company, Lowdermilk Brothers, built roads and utility lines around Los Alamos during the Manhattan Project.

Charles Cooper

Chicago, IL

Charles Cooper was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.