National Museum of Nuclear Science & History
Stalder worked for Stone and Webster Engineering Corporation.
Chester Lodge worked for the United States Engineer District Office.
Arthur Weisberg was a mechanical engineer with the Special Engineer Detachment assigned to the Metallurgical Lab at the University of Chicago.
John P. McBride was a research assistant in the Chemistry Division at the Chicago Met Lab. He was later assigned to Oak Ridge, where he worked on plutonium purification and on isolating uranium-233 isotopes from thorium.
C. P. Gaither worked for the J.A. Jones Construction Company.