National Museum of Nuclear Science & History
J. C. Blackwood worked for the Fercleve Corporation.
Treadwell worked at the 100-B and 100-D Areas at Hanford during the Manhattan Project.
Harold Hasenfus was part of the Special Engineer Detachment during the Manhattan Project and worked at the University of Chicago's Metalurgical Laboratory and at the gaseous diffusion plant in Oak Ridge.
Robert Meisky worked for the United States Engineer District Office.
Frank Pratt worked for the J.A. Jones Construction Company.
