National Museum of Nuclear Science & History
Marceil Roberson worked for the H. K. Ferguson Company.
Walter E. Dial served in the 1st Ordnance Squadron.
A. V. Peterson 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.
