National Museum of Nuclear Science & History
Charles Swenson worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Harold Ninger was a staff worker at Los Alamos during the Manhattan Project.
V. E. Helgesen worked for the William A. Pope Company.
Marvin O. Beatty served as a staff sergeant in the 393rd Bombardment Squadron.
Herrin worked at the 200 East Area at Hanford during the Manhattan Project.