National Museum of Nuclear Science & History
M. F. Welch worked for the United States Engineer District Office.
Swan Swanson was a staff worker at Los Alamos during the Manhattan Project.
Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Mortimer Schwartz served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
D. C. Shugart worked for the United States Engineer District Office.
