National Museum of Nuclear Science & History
Delbert Johnson was a mechanical engineer with the Special Engineer Detachment (SED) at Los Alamos. Johnson worked under 1st Lieutenant Howard C.
J. W. Gates worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Clarence D. McCain served in the 1027th Air Material Squadron.
Charles Cooper was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
