National Museum of Nuclear Science & History
Mary Whidden was a staff worker at Los Alamos during the Manhattan Project.
Thomas R. Williams was a laborer at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Roy Greenlee was a chemist at the University of Chicago Metallurgical Lab and at Oak Ridge, Tennessee.
Marvin H. Arnold, Jr. served in the 320th Troop Carrier Squadron.
