National Museum of Nuclear Science & History
Ubaldo Sanchez was a staff worker at Los Alamos during the Manhattan Project.
Robert R. Clifton served in the 603rd Air Engineering Squadron.
Baldwin worked for Stone and Webster Engineering Corporation.
MacDonald worked for Stone and Webster Engineering Corporation.
Roberta A. Edwards was a lab technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
