National Museum of Nuclear Science & History
Carr worked at the 200 West Area at Hanford during the Manhattan Project.
Charles Maier was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
John H. Harrington, Jr. served as a sergeant in the 393rd Bombardment Squadron.
Sadelle T. Greenblatt was a research assistant in the Instruments Division of the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.