National Museum of Nuclear Science & History
M. O. Swanson worked for the United States Engineer District Office.
Earl Pond, Sr. worked for the J.A. Jones Construction Company.
John Moonan was a staff worker at Los Alamos during the Manhattan Project.
E. M. Grant worked for the Roane-Anderson Company.
Helen Williams was a stenographer and clerk at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
