National Museum of Nuclear Science & History
J. P. Hogan worked for Hanley & Company.
Harry Stephon was a gruard and sergeant in the U.S. Army at the Metallurgical Laboratory in Chicago during the Manhattan Project.
R. F. Kocher worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Harding worked at the 300 Area at Hanford during the Manhattan Project.
Donald William Kerst is an American physicist known for his development of the betatron in 1940 and the Water Boiler Reactor at Los Alamos during the Manhattan Project.