National Museum of Nuclear Science & History
Lorraine Barbic was a technical worker in the Chemical Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Frances T. Janis was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Secundino Roybal was a staff worker at Los Alamos during the Manhattan Project.
Campbell worked for Stone and Webster Engineering Corporation.