National Museum of Nuclear Science & History
Jas Witt worked for the Tennessee Eastman Corporation at the Y-12 Plant.
H. F. Zimmerman worked for the J.A. Jones Construction Company.
Shirley Nyden was a laboratory technician in the Chemistry Division at the University of Chicago Met Lab between June and December of 1944.
M. E. Brennan worked for the Watson-Flagg Engineering Company.