National Museum of Nuclear Science & History
Hannoch worked in the United States Engineer District Office.
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.
Matson worked in the 100 B Area at Hanford during the Manhattan Project.
