Nuclear Museum Logo
Nuclear Museum Logo

National Museum of Nuclear Science & History

Delbert F. Johnson

Mechanical EngineerLos Alamos, NM

Trinity Site
Manhattan Project VeteranMilitary VeteranSpecial Engineer DetachmentTrinity Test Eyewitness
Delbert Johnson

Delbert Johnson was a mechanical engineer with the Special Engineer Detachment (SED) at Los Alamos. Johnson worked under 1st Lieutenant Howard C. Bush and witnessed the Trinity site explosion on July 16, 1945. After the bomb test, Johnson was one of the first to enter the crater to conduct scientific measurements.  

A Commendation for Delbert Johnson from President Harry Truman

Related Profiles

Arthur L. Watmough

Deepwater, NJ

Arthur Watmough was an electrical engineer working for the DuPont Chamberworks Company in New Jersey from 1941 to 1947.

Roy H. Beaton

T-Plant/200 Areas

Beaton worked in the 200 West Area at Hanford during the Manhattan Project.

J. P. Hiles

Y-12 Plant

J. P. Hiles worked for the Tennessee Eastman Corporation at the Y-12 Plant.

W. E. Foster

Y-12 Plant

W. E. Foster worked for the Tennessee Eastman Corporation at the Y-12 Plant.