National Museum of Nuclear Science & History
C. E. Twigg worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Hensley worked for the Stone and Webster Engineering Corporation.
D. L. DeNeal worked at the 300 Area at Hanford during the Manhattan Project.