National Museum of Nuclear Science & History
R. F. Perkins worked for the Union Carbide & Carbon Corporation.
Calderwood worked at the 200 East Area at Hanford during the Manhattan Project.
John F. Eley served in the 1st Ordnance Squadron.
Eleese Bowman was a laboratory assistant in the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.