National Museum of Nuclear Science & History
E. T. O'Conner worked for the Roane-Anderson Company.
Stewart worked at the 100-F Area at Hanford during the Manhattan Project.
Richard "Dick" Skancke was a security guard at Los Alamos during the Manhattan Project from late 1946 until late 1947.
Arthur Buck was a security guard for the Metallurgical Laboratory (“Met Lab”) at the University of Chicago during the Manhattan Project.
