Nancy Greenewalt Frederick's Interview (2006)

Nancy Greenewalt Frederick's Interview (2006)

Nancy Greenewalt Frederick is the oldest daughter of Crawford Greenewalt, a chemical engineer for the DuPont Company. He was assigned to act as a liaison between the physicists at the Chicago Met Lab and the engineers at Hanford, who were constructing the B Reactor. She grew up in Wilmington, DE during World War II.