National Museum of Nuclear Science & History
H. A. Ramsey worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Heffner worked at the 200 East Area at Hanford during the Manhattan Project.
Charles Mignon worked for the Kellex Corporation at the K-25 Plant.
Burr H. Ritter was a chemical engineer at the Hooker Chemical Company in Niagara Falls, New York during the Manhattan Project.
R. M. James worked for the Tennessee Eastman Corporation at the Y-12 Plant.