National Museum of Nuclear Science & History
Frank Vaughan was a research associate at the Chicago Met Lab during the Manhattan Project.
Bensch worked at the 100-F Area at Hanford during the Manhattan Project.
Robert Martens was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
A. L. Crawford worked for the J.A. Jones Construction Company.
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.