National Museum of Nuclear Science & History
Zen B. Portwood worked for the J.A. Jones Construction Company.
Charles Maier was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Bartholomew "Bart" Rivers was an instrument technician at the Hanford, Washington facility from 1943 through the end of the war.
Russell R. Carlson served in the 1027th Air Material Squadron.
August Anton worked as a civilian plumber on the Manhattan Project in Oak Ridge, Tennessee.
