National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
Hubbard worked for Stone and Webster Engineering Corporation.
M. W. Adelman worked for the Roane-Anderson Company.
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Chester V. Pawiak served in the 393rd Bombardment Squadron.