National Museum of Nuclear Science & History
O'Brien worked for Stone and Webster Engineering Corporation.
Nathalie Goldowski was a metallurgist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”).
John H. Martens was a research associate and chemist at the University of Chicago Met Lab and a member of the Special Engineer Detachment at Oak Ridge.
Margaret Anderson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
