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.
James Oliver Buchanan (1920-2001) was born on June 30, 1920 in Chicago, Illinois. He received his B.S (1941), M.
George Economou was an optical systems expert. Economou graduated from Harvard University with a degree in astronomy.
