National Museum of Nuclear Science & History
Holman worked for Stone and Webster Engineering Corporation.
Elizabeth Painter (later Elizabeth Painter Marcus) was an associate biologist in the Health Division at the University of Chicago Metallurgical Laboratory.
N. J. Johnson worked for Hanley & Company.
Marvin Davis was a part of the Military Police at Los Alamos. He was a mounted MP at the Trinity site before, during and after the famous test.
