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

B.T. Rossiter

Hanford, WA

Dr. J. C. Miller

Hanford, WA

Julius Ashkin

Los Alamos, NM

Julius Ashkin was an American physicist. Ashkin was born in Brooklyn, New York on August 23, 1920. He received a Ph.

Carl Hodson

Tinian Island

Carl Hodson served in the 603rd Air Engineering Squadron.