National Museum of Nuclear Science & History
Mildred Thompson was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Robert Muller worked for the United States Engineer District Office.
John Arnold joined the Manhattan Project in 1943 when the MED tasked his employer, the Kellogg Corporation, with developing a special barrier for the gaseous diffusion plant in Oak Ridge.
Ann Mazur worked for the United States Engineer District Office.