National Museum of Nuclear Science & History
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.
Arnold E. Sleipnes served as a techical sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
Richard Apple was a research associate at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
