National Museum of Nuclear Science & History
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Calvin B. Fowler served in the 1st Ordnance Squadron.
Thomas Puddester was a staff worker at Los Alamos during the Manhattan Project.
Rose Pingel was a staff worker at Los Alamos during the Manhattan Project.
Wangelin worked at the 200 East and 200 West Areas at Hanford during the Manhattan Project.