National Museum of Nuclear Science & History
J. O'Conner worked for the Midwest Piping and Supply Company.
Dr. Karl Larsen worked at Massachusetts Institute of Technology during the Manahattan Project. While there, he conducted heavy-water research by spectrum analysis, which was one of the prerequisites to the early atomic bombs.
Henry Wigen worked for the United States Engineer District Office.
Horace Reeves worked for the J.A. Jones Construction Company.
