National Museum of Nuclear Science & History
Paul Willard was a staff worker at Los Alamos during the Manhattan Project.
Harold McCurdy worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Grimsrud worked at the 300 Area at Hanford during the Manhattan Project.
William P. Norris was an associate bio-chemist at the University of Chicago Met Lab. After a stint at the Dow Chemical Company, he joined the Manhattan Project in July 1944.