National Museum of Nuclear Science & History
Bryan Boyd worked for the J.A. Jones Construction Company.
Steinbach worked for Stone and Webster Engineering Corporation.
Robert Harrison was an engineer in the Special Engineering Detachment (SED) in Oak Ridge, Tennessee from August 1944 to August 1945.
Jessen worked at the 200 East Area at Hanford during the Manhattan Project.
Elizabeth Greisen accompanied her husband, physicist Kenneth Greisen, to Los Alamos during the Manhattan Project.