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

John M. Sprecher

Wilmington, DE

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

Jean Tatlock

University of California, Berkeley

Jean Tatlock (1914-1944) was an American psychiatrist and Communist Party member. Tatlock’s father was an English professor at the University of California, Berkeley.

Gordon Garrett

Oak Ridge, TN

Gordon Garrett grew up in Oak Ridge, Tennessee, where his father, Merrill Garrett, worked on the Manhattan Project.

Julie Melton

Los Alamos, NM

Julie Melton is an author and expert on civil society, development, and democratization. The daughter of Manhattan Project historian David Hawkins and Frances Hawkins, the founder of the nursery school at Los Alamos, she was a small child at Los Alamos during the Manhattan Project.