National Museum of Nuclear Science & History
Marion Mandel was a laboratory technician in the Health Division at the University of Chicago Met Lab.
H. M. Kolodkin worked for the Roane-Anderson Company.
John William Healy (1920-2001) worked in the field of radiation safety at Hanford during the Manhattan Project and at Los Alamos National Laboratory.
A. P. Kelly worked for the Tennessee Eastman Corporation at the Y-12 Plant.