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.
H. F. Zimmerman worked for the J.A. Jones Construction Company.
William Sehenk worked on procurement and property at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Sanfranski worked at the 300 Area at Hanford during the Manhattan Project.
