National Museum of Nuclear Science & History
Irvin Mastin worked for the J.A. Jones Construction Company.
Robert Thompson was a staff worker at Los Alamos during the Manhattan Project.
Lee R. Masoner served with the 603rd Air Engineering Squadron of the 509th Composite Group on Tinian Island in the South Pacific during World War II.
George Michell worked for the Tennessee Eastman Corporation at the Y-12 Plant.