National Museum of Nuclear Science & History
Hankal worked for Stone and Webster Engineering Corporation.
Grace R. Harvey was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Bernard West was a civilian worker at the DuPont Chamberworks facility in Deepwater, New Jersey.
Elizabeth Painter (later Elizabeth Painter Marcus) was an associate biologist in the Health Division at the University of Chicago Metallurgical Laboratory.
J. G. Branfeld served as a sergeant in the 390th Air Service Group.
