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.
Hester was a staff member at Los Alamos during the Manhattan Project.
O. W. Manz, Jr. worked for the Union Carbide & Carbon Corporation.
Cox worked at the 200 West Area at Hanford during the Manhattan Project.
