National Museum of Nuclear Science & History
H. V. Appen worked for the J.A. Jones Construction Company.
George Koval was an American chemical engineer and one of the most important Soviet spies of the 20th century.
A. R. Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
N. C. Poe, Jr. worked for the Poe Piping & Heating Company.
