National Museum of Nuclear Science & History
C. R. Frazier worked for the Poe Piping & Heating Company.
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Fred Bader worked for the J.A. Jones Construction Company.
Gawthrop worked at the 300 Area at Hanford during the Manhattan Project.
