National Museum of Nuclear Science & History
Earl Smith worked for the H. K. Ferguson Company.
C. L. Henningsen, Jr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Anton Poslof served in the 1027th Air Material Squadron.
Joseph Ryan was a staff worker at Los Alamos during the Manhattan Project.
