National Museum of Nuclear Science & History
C. E. Twigg worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Matson worked in the 100 B Area at Hanford during the Manhattan Project.
Karl Walther was a glassblower for Columbia University and Brookhaven National Laboratory. During the Manhattan Project, Walther worked as a senior glassblower at the Nash Garage Building at Columbia, where scientists developed the gaseous diffusion process.