National Museum of Nuclear Science & History
F. S. Tew worked for the United States Engineer District Office.
Eleanor Phillips was a laboratory assistant at the Chicago Met Lab during the Manhattan Project. She worked in Section C-II of the Chemistry Division.
C. R. Frazier worked for the Poe Piping & Heating Company.
Andrew H. MacMahon was the Chief Property Officer of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.