National Museum of Nuclear Science & History
Kopanski worked at the 200 East Area at Hanford during the Manhattan Project.
Harvey C. Rentschler was an American inventor and director of research at the Westinghouse Electric Corporation Lamp Plant in Bloomfield, New Jersey.
H. M. Nappen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Kenneth Zimmerman worked for the United States Engineer District Office.
