National Museum of Nuclear Science & History
Piper worked for Stone and Webster Engineering Corporation.
Robert J. Moon (1911-1989) was a physicist at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project and a signer of the Szilard petition.
J. J. Donovan worked for the H. K. Ferguson Company.
Argersinger worked for the Stone and Webster Engineering Corporation.
Daniel J. Keefe was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
