National Museum of Nuclear Science & History
Rosalyn Thomas was a staff worker at Los Alamos during the Manhattan Project.
Chester J. Krajewski served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
Virginia Meschke was a chemist and technician at the University of Chicago Met Lab. She specialized in plutonium chemistry.
Robert R. Williamson was a laboratory assistant and computer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
