National Museum of Nuclear Science & History
W. A. Plumb worked for the United States Engineer District Office.
R. V. Ward worked for the J.A. Jones Construction Company.
Crisp worked for Stone and Webster Engineering Corporation.
Fredrika Lewis was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
E. H. Mantz worked for Hanley & Company.
