National Museum of Nuclear Science & History
Ilse Perlman was a staff worker at Los Alamos during the Manhattan Project.
Johnstone worked at the 300 Area at Hanford during the Manhattan Project.
Kenneth Pursell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Beyer worked in the United States Engineer District Office.
Willingham worked at the 200 West Area at Hanford during the Manhattan Project.