National Museum of Nuclear Science & History
Opal MacDonald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Steve Buckingham worked as a chemist at the Hanford site beginning in 1947. He understood well how the B Reactor worked and also worked with the T-Plant.
Gene Newlin served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.