National Museum of Nuclear Science & History
Greenhalgh worked in the United States Engineer District Office.
Rex Edward Keller was a member of the Special Engineering Detachment, assigned to work in Seth Neddermeyer’s chemistry group at Los Alamos.
K. C. Detrick worked for the J.A. Jones Construction Company.
W. R. Duff worked for the Tennessee Eastman Corporation at the Y-12 Plant.