National Museum of Nuclear Science & History
Clarence Schalia was a staff worker at Los Alamos during the Manhattan Project.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
William J. Hannert served in the 393rd Bombardment Squadron.
J. C. McAndrews worked for the Roane-Anderson Company.
John M. Purdum served in the 603rd Air Engineering Squadron.
