National Museum of Nuclear Science & History
H. E. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
J. F. Bevis worked for the J.A. Jones Construction Company.
J. J. De Groot worked for the J.A. Jones Construction Company.
H. G. Arnett worked for the Roane-Anderson Company.
Lomie F. Caho was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
